\n\t\u5c42\u53e0\u9009\u62e9\u5668
\n<\/h2>\n\r\n$("form input") \u9009\u62e9\u6240\u6709\u7684form\u5143\u7d20\u4e2d\u7684input\u5143\u7d20 \r\n$("#main > *") \u9009\u62e9id\u503c\u4e3amain\u7684\u6240\u6709\u7684\u5b50\u5143\u7d20 \r\n$("label + input") \u9009\u62e9\u6240\u6709\u7684label\u5143\u7d20\u7684\u4e0b\u4e00\u4e2ainput\u5143\u7d20\u8282\u70b9\uff0c\u7ecf\u6d4b\u8bd5\u9009\u62e9\u5668\u8fd4\u56de\u7684\u662flabel\u6807\u7b7e\u540e\u9762\u76f4\u63a5\u8ddf\u4e00\u4e2ainput\u6807\u7b7e\u7684\u6240\u6709input\u6807\u7b7e\u5143\u7d20 \r\n$("#prev ~ div") \u540c\u80de\u9009\u62e9\u5668\uff0c\u8be5\u9009\u62e9\u5668\u8fd4\u56de\u7684\u4e3aid\u4e3aprev\u7684\u6807\u7b7e\u5143\u7d20\u7684\u6240\u6709\u7684\u5c5e\u4e8e\u540c\u4e00\u4e2a\u7236\u5143\u7d20\u7684div\u6807\u7b7e <\/pre>\n\n\t\u57fa\u672c\u8fc7\u6ee4\u9009\u62e9\u5668
\n<\/h2>\n\r\n$("tr:first") \u9009\u62e9\u6240\u6709tr\u5143\u7d20\u7684\u7b2c\u4e00\u4e2a \r\n$("tr:last") \u9009\u62e9\u6240\u6709tr\u5143\u7d20\u7684\u6700\u540e\u4e00\u4e2a \r\n$("input:not(:checked) + span") \u8fc7\u6ee4\u6389\uff1achecked\u7684\u9009\u62e9\u5668\u7684\u6240\u6709\u7684input\u5143\u7d20 \r\n$("tr:even") \u9009\u62e9\u6240\u6709\u7684tr\u5143\u7d20\u7684\u7b2c0\uff0c2\uff0c4... ...\u4e2a\u5143\u7d20\uff08\u6ce8\u610f\uff1a\u56e0\u4e3a\u6240\u9009\u62e9\u7684\u591a\u4e2a\u5143\u7d20\u65f6\u4e3a\u6570\u7ec4\uff0c\u6240\u4ee5\u5e8f\u53f7\u662f\u4ece0\u5f00\u59cb\uff09 \r\n$("tr:odd") \u9009\u62e9\u6240\u6709\u7684tr\u5143\u7d20\u7684\u7b2c1\uff0c3\uff0c5... ...\u4e2a\u5143\u7d20 \r\n$("td:eq(2)") \u9009\u62e9\u6240\u6709\u7684td\u5143\u7d20\u4e2d\u5e8f\u53f7\u4e3a2\u7684\u90a3\u4e2atd\u5143\u7d20 \r\n$("td:gt(4)") \u9009\u62e9td\u5143\u7d20\u4e2d\u5e8f\u53f7\u5927\u4e8e4\u7684\u6240\u6709td\u5143\u7d20 \r\n$("td:ll(4)") \u9009\u62e9td\u5143\u7d20\u4e2d\u5e8f\u53f7\u5c0f\u4e8e4\u7684\u6240\u6709\u7684td\u5143\u7d20 \r\n$(":header") \r\n$("div:animated") <\/pre>\n\n\t\u5185\u5bb9\u8fc7\u6ee4\u9009\u62e9\u5668
\n<\/h2>\n\r\n$("div:contains('John')") \u9009\u62e9\u6240\u6709div\u4e2d\u542b\u6709John\u6587\u672c\u7684\u5143\u7d20 \r\n$("td:empty") \u9009\u62e9\u6240\u6709\u7684\u4e3a\u7a7a\uff08\u4e5f\u4e0d\u5305\u62ec\u6587\u672c\u8282\u70b9\uff09\u7684td\u5143\u7d20\u7684\u6570\u7ec4 \r\n$("div:has(p)") \u9009\u62e9\u6240\u6709\u542b\u6709p\u6807\u7b7e\u7684div\u5143\u7d20 \r\n$("td:parent") \u9009\u62e9\u6240\u6709\u7684\u4ee5td\u4e3a\u7236\u8282\u70b9\u7684\u5143\u7d20\u6570\u7ec4 <\/pre>\n\n\t\u53ef\u89c6\u5316\u8fc7\u6ee4\u9009\u62e9\u5668
\n<\/h2>\n\r\n$("div:hidden") \u9009\u62e9\u6240\u6709\u7684\u88abhidden\u7684div\u5143\u7d20 \r\n$("div:visible") \u9009\u62e9\u6240\u6709\u7684\u53ef\u89c6\u5316\u7684div\u5143\u7d20<\/pre>\n\n\t\u5c5e\u6027\u8fc7\u6ee4\u9009\u62e9\u5668
\n<\/h2>\n\r\n$("div[id]") \u9009\u62e9\u6240\u6709\u542b\u6709id\u5c5e\u6027\u7684div\u5143\u7d20 \r\n$("input[name='newsletter']") \u9009\u62e9\u6240\u6709\u7684name\u5c5e\u6027\u7b49\u4e8e'newsletter'\u7684input\u5143\u7d20 \r\n$("input[name!='newsletter']") \u9009\u62e9\u6240\u6709\u7684name\u5c5e\u6027\u4e0d\u7b49\u4e8e'newsletter'\u7684input\u5143\u7d20 \r\n$("input[name^='news']") \u9009\u62e9\u6240\u6709\u7684name\u5c5e\u6027\u4ee5'news'\u5f00\u5934\u7684input\u5143\u7d20 \r\n$("input[name$='news']") \u9009\u62e9\u6240\u6709\u7684name\u5c5e\u6027\u4ee5'news'\u7ed3\u5c3e\u7684input\u5143\u7d20 \r\n$("input[name*='man']") \u9009\u62e9\u6240\u6709\u7684name\u5c5e\u6027\u5305\u542b'news'\u7684input\u5143\u7d20 \r\n$("input[id][name$='man']") \u53ef\u4ee5\u4f7f\u7528\u591a\u4e2a\u5c5e\u6027\u8fdb\u884c\u8054\u5408\u9009\u62e9\uff0c\u8be5\u9009\u62e9\u5668\u662f\u5f97\u5230\u6240\u6709\u7684\u542b\u6709id\u5c5e\u6027\u5e76\u4e14\u90a3\u4e48\u5c5e\u6027\u4ee5man\u7ed3\u5c3e\u7684\u5143\u7d20<\/pre>\n\n\t\u5b50\u5143\u7d20\u8fc7\u6ee4\u9009\u62e9\u5668
\n<\/h2>\n\r\n$("ul li:nth-child(2)"),$("ul li:nth-child(odd)"),$("ul li:nth-child(3n + 1)") \r\n$("div span:first-child") \u8fd4\u56de\u6240\u6709\u7684div\u5143\u7d20\u7684\u7b2c\u4e00\u4e2a\u5b50\u8282\u70b9\u7684\u6570\u7ec4 \r\n$("div span:last-child") \u8fd4\u56de\u6240\u6709\u7684div\u5143\u7d20\u7684\u6700\u540e\u4e00\u4e2a\u8282\u70b9\u7684\u6570\u7ec4 \r\n$("div button:only-child") \u8fd4\u56de\u6240\u6709\u7684div\u4e2d\u53ea\u6709\u552f\u4e00\u4e00\u4e2a\u5b50\u8282\u70b9\u7684\u6240\u6709\u5b50\u8282\u70b9\u7684\u6570\u7ec4 <\/pre>\n\n\t\u8868\u5355\u5143\u7d20\u9009\u62e9\u5668
\n<\/h2>\n\r\n$(":input") \u9009\u62e9\u6240\u6709\u7684\u8868\u5355\u8f93\u5165\u5143\u7d20\uff0c\u5305\u62ecinput, textarea, select \u548c button \r\n$(":text") \u9009\u62e9\u6240\u6709\u7684text input\u5143\u7d20 \r\n$(":password") \u9009\u62e9\u6240\u6709\u7684password input\u5143\u7d20 \r\n$(":radio") \u9009\u62e9\u6240\u6709\u7684radio input\u5143\u7d20 \r\n$(":checkbox") \u9009\u62e9\u6240\u6709\u7684checkbox input\u5143\u7d20 \r\n$(":submit") \u9009\u62e9\u6240\u6709\u7684submit input\u5143\u7d20 \r\n$(":image") \u9009\u62e9\u6240\u6709\u7684image input\u5143\u7d20 \r\n$(":reset") \u9009\u62e9\u6240\u6709\u7684reset input\u5143\u7d20 \r\n$(":button") \u9009\u62e9\u6240\u6709\u7684button input\u5143\u7d20 \r\n$(":file") \u9009\u62e9\u6240\u6709\u7684file input\u5143\u7d20 \r\n$(":hidden") \u9009\u62e9\u6240\u6709\u7c7b\u578b\u4e3ahidden\u7684input\u5143\u7d20\u6216\u8868\u5355\u7684\u9690\u85cf\u57df <\/pre>\n\n\t\u8868\u5355\u5143\u7d20\u8fc7\u6ee4\u9009\u62e9\u5668
\n<\/h2>\n\r\n$(":enabled") \u9009\u62e9\u6240\u6709\u7684\u53ef\u64cd\u4f5c\u7684\u8868\u5355\u5143\u7d20 \r\n$(":disabled") \u9009\u62e9\u6240\u6709\u7684\u4e0d\u53ef\u64cd\u4f5c\u7684\u8868\u5355\u5143\u7d20 \r\n$(":checked") \u9009\u62e9\u6240\u6709\u7684\u88abchecked\u7684\u8868\u5355\u5143\u7d20 \r\n$("select option:selected") \u9009\u62e9\u6240\u6709\u7684select \u7684\u5b50\u5143\u7d20\u4e2d\u88abselected\u7684\u5143\u7d20 \r\n\u9009\u53d6\u4e00\u4e2a name \u4e3a”S_03_22″\u7684input text\u6846\u7684\u4e0a\u4e00\u4e2atd\u7684text\u503c\r\n$(”input[@ name =S_03_22]“).parent().prev().text() \r\n\u540d\u5b57\u4ee5”S_”\u5f00\u59cb\uff0c\u5e76\u4e14\u4e0d\u662f\u4ee5”_R”\u7ed3\u5c3e\u7684\r\n$(”input[@ name ^='S_']“).not(”[@ name $='_R']“) \r\n\u4e00\u4e2a\u540d\u4e3a radio_01\u7684radio\u6240\u9009\u7684\u503c\r\n$(”input[@ name =radio_01][@checked]“).val(); \r\n$("A B") \u67e5\u627eA\u5143\u7d20\u4e0b\u9762\u7684\u6240\u6709\u5b50\u8282\u70b9\uff0c\u5305\u62ec\u975e\u76f4\u63a5\u5b50\u8282\u70b9\r\n$("A>B") \u67e5\u627eA\u5143\u7d20\u4e0b\u9762\u7684\u76f4\u63a5\u5b50\u8282\u70b9\r\n$("A+B") \u67e5\u627eA\u5143\u7d20\u540e\u9762\u7684\u5144\u5f1f\u8282\u70b9\uff0c\u5305\u62ec\u975e\u76f4\u63a5\u5b50\u8282\u70b9\r\n$("A~B") \u67e5\u627eA\u5143\u7d20\u540e\u9762\u7684\u5144\u5f1f\u8282\u70b9\uff0c\u4e0d\u5305\u62ec\u975e\u76f4\u63a5\u5b50\u8282\u70b9 \r\n$("A B") \u67e5\u627eA\u5143\u7d20\u4e0b\u9762\u7684\u6240\u6709\u5b50\u8282\u70b9\uff0c\u5305\u62ec\u975e\u76f4\u63a5\u5b50\u8282\u70b9<\/pre>\n\n\t\u4f8b\u5b50\uff1a\u627e\u5230\u8868\u5355\u4e2d\u6240\u6709\u7684 input \u5143\u7d20<\/strong>
\n\t \n<\/p>\n\r\n<form>\r\n<label>Name:<\/label>\r\n<input name="name" \/>\r\n<fieldset>\r\n <label>Newsletter:<\/label>\r\n <input name="newsletter" \/>\r\n<\/fieldset>\r\n<\/form>\r\n<input name="none" \/> \r\n$("form input") \r\n\u7ed3\u679c: \r\n[ , ]<\/pre>\n\n\t$("A>B") \u67e5\u627eA\u5143\u7d20\u4e0b\u9762\u7684\u76f4\u63a5\u5b50\u8282\u70b9
\n\t\u4f8b\u5b50\uff1a\u5339\u914d\u8868\u5355\u4e2d\u6240\u6709\u7684\u5b50\u7ea7input\u5143\u7d20\u3002<\/strong> \n<\/p>\n\r\n<form>\r\n<label>Name:<\/label>\r\n<input name="name" \/>\r\n<fieldset>\r\n <label>Newsletter:<\/label>\r\n <input name="newsletter" \/>\r\n<\/fieldset>\r\n<\/form>\r\n<input name="none" \/> \r\n$("form > input") \r\n\u7ed3\u679c: \r\n[ ] <\/pre>\n\n\t$("A+B") \u67e5\u627eA\u5143\u7d20\u540e\u9762\u7684\u5144\u5f1f\u8282\u70b9\uff0c\u5305\u62ec\u975e\u76f4\u63a5\u5b50\u8282\u70b9
\n\t\u4f8b\u5b50\uff1a\u5339\u914d\u6240\u6709\u8ddf\u5728 label \u540e\u9762\u7684 input \u5143\u7d20<\/strong> \n<\/p>\n\r\n<form>\r\n<label>Name:<\/label>\r\n<input name="name" \/>\r\n<fieldset>\r\n <label>Newsletter:<\/label>\r\n <input name="newsletter" \/>\r\n<\/fieldset>\r\n<\/form>\r\n<input name="none" \/> \r\n$("label + input") \r\n\u7ed3\u679c: \r\n[ , ]<\/pre>\n\n\t$("A~B") \u67e5\u627eA\u5143\u7d20\u540e\u9762\u7684\u5144\u5f1f\u8282\u70b9\uff0c\u4e0d\u5305\u62ec\u975e\u76f4\u63a5\u5b50\u8282\u70b9
\n\t\u4f8b\u5b50\uff1a\u627e\u5230\u6240\u6709\u4e0e\u8868\u5355\u540c\u8f88\u7684 input \u5143\u7d20<\/strong> \n<\/p>\n\r\n<form>\r\n<label>Name:<\/label>\r\n<input name="name" \/>\r\n<fieldset>\r\n <label>Newsletter:<\/label>\r\n <input name="newsletter" \/>\r\n<\/fieldset>\r\n<\/form>\r\n<input name="none" \/> \r\n$("form ~ input") \r\n\u7ed3\u679c: \r\n[ ] \r\n<\/pre>\n![\"\u4e1a\u4f59\u8349\u516c\u4f17\u53f7\"\/](\"https:\/\/saas.51autoparts.cn\/api\/admin\/sys-file\/oss\/file?fileName=84db51f8561e448f9a4fda2eff0811f9.jpg\")
<\/p>
\u6700\u540e\uff0c\u6b22\u8fce\u5173\u6ce8\u6211\u7684\u4e2a\u4eba\u5fae\u4fe1\u516c\u4f17\u53f7\uff1a\u4e1a\u4f59\u8349\uff08yyucao\uff09\uff01\u53ef\u52a0\u4f5c\u8005\u5fae\u4fe1\u53f7\uff1axttblog2<\/font>\u3002\u5907\u6ce8\uff1a\u201c1\u201d\uff0c\u6dfb\u52a0\u535a\u4e3b\u5fae\u4fe1\u62c9\u4f60\u8fdb\u5fae\u4fe1\u7fa4\u3002\u5907\u6ce8\u9519\u8bef\u4e0d\u4f1a\u540c\u610f\u597d\u53cb\u7533\u8bf7\u3002<\/b>\u518d\u6b21\u611f\u8c22\u60a8\u7684\u5173\u6ce8\uff01\u540e\u7eed\u6709\u7cbe\u5f69\u5185\u5bb9\u4f1a\u7b2c\u4e00\u65f6\u95f4\u53d1\u7ed9\u60a8\uff01\u539f\u521b\u6587\u7ae0\u6295\u7a3f\u8bf7\u53d1\u9001\u81f3532009913@qq.com\u90ae\u7bb1\u3002\u5546\u52a1\u5408\u4f5c\u4e5f\u53ef\u6dfb\u52a0\u4f5c\u8005\u5fae\u4fe1\u8fdb\u884c\u8054\u7cfb\uff01<\/p>\u672c\u6587\u539f\u6587\u51fa\u5904\uff1a\u4e1a\u4f59\u8349<\/a>\uff1a » jQuery\u9009\u62e9\u5668\u4f7f\u7528\u6559\u7a0b<\/a><\/p>","protected":false},"excerpt":{"rendered":"jQuery \u7684\u9009\u62e9\u5668\u53ef\u8c13\u4e4b\u5f3a\u5927\u65e0\u6bd4\uff0c\u8fd9\u91cc\u7b80\u5355\u5730\u603b\u7ed3\u4e00\u4e0b\u5e38\u7528\u7684\u5143\u7d20\u67e5\u627e\u65b9\u6cd5 $("#my […]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4],"tags":[49,776,778,775,777,779],"class_list":["post-1050","post","type-post","status-publish","format-standard","hentry","category-html5","tag-jquery","tag-776","tag-778","tag-775","tag-777","tag-779"],"_links":{"self":[{"href":"https:\/\/www.xttblog.com\/index.php?rest_route=\/wp\/v2\/posts\/1050","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.xttblog.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.xttblog.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.xttblog.com\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.xttblog.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1050"}],"version-history":[{"count":1,"href":"https:\/\/www.xttblog.com\/index.php?rest_route=\/wp\/v2\/posts\/1050\/revisions"}],"predecessor-version":[{"id":1051,"href":"https:\/\/www.xttblog.com\/index.php?rest_route=\/wp\/v2\/posts\/1050\/revisions\/1051"}],"wp:attachment":[{"href":"https:\/\/www.xttblog.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1050"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.xttblog.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1050"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.xttblog.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1050"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
\n\t\u57fa\u672c\u8fc7\u6ee4\u9009\u62e9\u5668
\n<\/h2>\n\r\n$("tr:first") \u9009\u62e9\u6240\u6709tr\u5143\u7d20\u7684\u7b2c\u4e00\u4e2a \r\n$("tr:last") \u9009\u62e9\u6240\u6709tr\u5143\u7d20\u7684\u6700\u540e\u4e00\u4e2a \r\n$("input:not(:checked) + span") \u8fc7\u6ee4\u6389\uff1achecked\u7684\u9009\u62e9\u5668\u7684\u6240\u6709\u7684input\u5143\u7d20 \r\n$("tr:even") \u9009\u62e9\u6240\u6709\u7684tr\u5143\u7d20\u7684\u7b2c0\uff0c2\uff0c4... ...\u4e2a\u5143\u7d20\uff08\u6ce8\u610f\uff1a\u56e0\u4e3a\u6240\u9009\u62e9\u7684\u591a\u4e2a\u5143\u7d20\u65f6\u4e3a\u6570\u7ec4\uff0c\u6240\u4ee5\u5e8f\u53f7\u662f\u4ece0\u5f00\u59cb\uff09 \r\n$("tr:odd") \u9009\u62e9\u6240\u6709\u7684tr\u5143\u7d20\u7684\u7b2c1\uff0c3\uff0c5... ...\u4e2a\u5143\u7d20 \r\n$("td:eq(2)") \u9009\u62e9\u6240\u6709\u7684td\u5143\u7d20\u4e2d\u5e8f\u53f7\u4e3a2\u7684\u90a3\u4e2atd\u5143\u7d20 \r\n$("td:gt(4)") \u9009\u62e9td\u5143\u7d20\u4e2d\u5e8f\u53f7\u5927\u4e8e4\u7684\u6240\u6709td\u5143\u7d20 \r\n$("td:ll(4)") \u9009\u62e9td\u5143\u7d20\u4e2d\u5e8f\u53f7\u5c0f\u4e8e4\u7684\u6240\u6709\u7684td\u5143\u7d20 \r\n$(":header") \r\n$("div:animated") <\/pre>\n\n\t\u5185\u5bb9\u8fc7\u6ee4\u9009\u62e9\u5668
\n<\/h2>\n\r\n$("div:contains('John')") \u9009\u62e9\u6240\u6709div\u4e2d\u542b\u6709John\u6587\u672c\u7684\u5143\u7d20 \r\n$("td:empty") \u9009\u62e9\u6240\u6709\u7684\u4e3a\u7a7a\uff08\u4e5f\u4e0d\u5305\u62ec\u6587\u672c\u8282\u70b9\uff09\u7684td\u5143\u7d20\u7684\u6570\u7ec4 \r\n$("div:has(p)") \u9009\u62e9\u6240\u6709\u542b\u6709p\u6807\u7b7e\u7684div\u5143\u7d20 \r\n$("td:parent") \u9009\u62e9\u6240\u6709\u7684\u4ee5td\u4e3a\u7236\u8282\u70b9\u7684\u5143\u7d20\u6570\u7ec4 <\/pre>\n\n\t\u53ef\u89c6\u5316\u8fc7\u6ee4\u9009\u62e9\u5668
\n<\/h2>\n\r\n$("div:hidden") \u9009\u62e9\u6240\u6709\u7684\u88abhidden\u7684div\u5143\u7d20 \r\n$("div:visible") \u9009\u62e9\u6240\u6709\u7684\u53ef\u89c6\u5316\u7684div\u5143\u7d20<\/pre>\n\n\t\u5c5e\u6027\u8fc7\u6ee4\u9009\u62e9\u5668
\n<\/h2>\n\r\n$("div[id]") \u9009\u62e9\u6240\u6709\u542b\u6709id\u5c5e\u6027\u7684div\u5143\u7d20 \r\n$("input[name='newsletter']") \u9009\u62e9\u6240\u6709\u7684name\u5c5e\u6027\u7b49\u4e8e'newsletter'\u7684input\u5143\u7d20 \r\n$("input[name!='newsletter']") \u9009\u62e9\u6240\u6709\u7684name\u5c5e\u6027\u4e0d\u7b49\u4e8e'newsletter'\u7684input\u5143\u7d20 \r\n$("input[name^='news']") \u9009\u62e9\u6240\u6709\u7684name\u5c5e\u6027\u4ee5'news'\u5f00\u5934\u7684input\u5143\u7d20 \r\n$("input[name$='news']") \u9009\u62e9\u6240\u6709\u7684name\u5c5e\u6027\u4ee5'news'\u7ed3\u5c3e\u7684input\u5143\u7d20 \r\n$("input[name*='man']") \u9009\u62e9\u6240\u6709\u7684name\u5c5e\u6027\u5305\u542b'news'\u7684input\u5143\u7d20 \r\n$("input[id][name$='man']") \u53ef\u4ee5\u4f7f\u7528\u591a\u4e2a\u5c5e\u6027\u8fdb\u884c\u8054\u5408\u9009\u62e9\uff0c\u8be5\u9009\u62e9\u5668\u662f\u5f97\u5230\u6240\u6709\u7684\u542b\u6709id\u5c5e\u6027\u5e76\u4e14\u90a3\u4e48\u5c5e\u6027\u4ee5man\u7ed3\u5c3e\u7684\u5143\u7d20<\/pre>\n\n\t\u5b50\u5143\u7d20\u8fc7\u6ee4\u9009\u62e9\u5668
\n<\/h2>\n\r\n$("ul li:nth-child(2)"),$("ul li:nth-child(odd)"),$("ul li:nth-child(3n + 1)") \r\n$("div span:first-child") \u8fd4\u56de\u6240\u6709\u7684div\u5143\u7d20\u7684\u7b2c\u4e00\u4e2a\u5b50\u8282\u70b9\u7684\u6570\u7ec4 \r\n$("div span:last-child") \u8fd4\u56de\u6240\u6709\u7684div\u5143\u7d20\u7684\u6700\u540e\u4e00\u4e2a\u8282\u70b9\u7684\u6570\u7ec4 \r\n$("div button:only-child") \u8fd4\u56de\u6240\u6709\u7684div\u4e2d\u53ea\u6709\u552f\u4e00\u4e00\u4e2a\u5b50\u8282\u70b9\u7684\u6240\u6709\u5b50\u8282\u70b9\u7684\u6570\u7ec4 <\/pre>\n\n\t\u8868\u5355\u5143\u7d20\u9009\u62e9\u5668
\n<\/h2>\n\r\n$(":input") \u9009\u62e9\u6240\u6709\u7684\u8868\u5355\u8f93\u5165\u5143\u7d20\uff0c\u5305\u62ecinput, textarea, select \u548c button \r\n$(":text") \u9009\u62e9\u6240\u6709\u7684text input\u5143\u7d20 \r\n$(":password") \u9009\u62e9\u6240\u6709\u7684password input\u5143\u7d20 \r\n$(":radio") \u9009\u62e9\u6240\u6709\u7684radio input\u5143\u7d20 \r\n$(":checkbox") \u9009\u62e9\u6240\u6709\u7684checkbox input\u5143\u7d20 \r\n$(":submit") \u9009\u62e9\u6240\u6709\u7684submit input\u5143\u7d20 \r\n$(":image") \u9009\u62e9\u6240\u6709\u7684image input\u5143\u7d20 \r\n$(":reset") \u9009\u62e9\u6240\u6709\u7684reset input\u5143\u7d20 \r\n$(":button") \u9009\u62e9\u6240\u6709\u7684button input\u5143\u7d20 \r\n$(":file") \u9009\u62e9\u6240\u6709\u7684file input\u5143\u7d20 \r\n$(":hidden") \u9009\u62e9\u6240\u6709\u7c7b\u578b\u4e3ahidden\u7684input\u5143\u7d20\u6216\u8868\u5355\u7684\u9690\u85cf\u57df <\/pre>\n\n\t\u8868\u5355\u5143\u7d20\u8fc7\u6ee4\u9009\u62e9\u5668
\n<\/h2>\n\r\n$(":enabled") \u9009\u62e9\u6240\u6709\u7684\u53ef\u64cd\u4f5c\u7684\u8868\u5355\u5143\u7d20 \r\n$(":disabled") \u9009\u62e9\u6240\u6709\u7684\u4e0d\u53ef\u64cd\u4f5c\u7684\u8868\u5355\u5143\u7d20 \r\n$(":checked") \u9009\u62e9\u6240\u6709\u7684\u88abchecked\u7684\u8868\u5355\u5143\u7d20 \r\n$("select option:selected") \u9009\u62e9\u6240\u6709\u7684select \u7684\u5b50\u5143\u7d20\u4e2d\u88abselected\u7684\u5143\u7d20 \r\n\u9009\u53d6\u4e00\u4e2a name \u4e3a”S_03_22″\u7684input text\u6846\u7684\u4e0a\u4e00\u4e2atd\u7684text\u503c\r\n$(”input[@ name =S_03_22]“).parent().prev().text() \r\n\u540d\u5b57\u4ee5”S_”\u5f00\u59cb\uff0c\u5e76\u4e14\u4e0d\u662f\u4ee5”_R”\u7ed3\u5c3e\u7684\r\n$(”input[@ name ^='S_']“).not(”[@ name $='_R']“) \r\n\u4e00\u4e2a\u540d\u4e3a radio_01\u7684radio\u6240\u9009\u7684\u503c\r\n$(”input[@ name =radio_01][@checked]“).val(); \r\n$("A B") \u67e5\u627eA\u5143\u7d20\u4e0b\u9762\u7684\u6240\u6709\u5b50\u8282\u70b9\uff0c\u5305\u62ec\u975e\u76f4\u63a5\u5b50\u8282\u70b9\r\n$("A>B") \u67e5\u627eA\u5143\u7d20\u4e0b\u9762\u7684\u76f4\u63a5\u5b50\u8282\u70b9\r\n$("A+B") \u67e5\u627eA\u5143\u7d20\u540e\u9762\u7684\u5144\u5f1f\u8282\u70b9\uff0c\u5305\u62ec\u975e\u76f4\u63a5\u5b50\u8282\u70b9\r\n$("A~B") \u67e5\u627eA\u5143\u7d20\u540e\u9762\u7684\u5144\u5f1f\u8282\u70b9\uff0c\u4e0d\u5305\u62ec\u975e\u76f4\u63a5\u5b50\u8282\u70b9 \r\n$("A B") \u67e5\u627eA\u5143\u7d20\u4e0b\u9762\u7684\u6240\u6709\u5b50\u8282\u70b9\uff0c\u5305\u62ec\u975e\u76f4\u63a5\u5b50\u8282\u70b9<\/pre>\n\n\t\u4f8b\u5b50\uff1a\u627e\u5230\u8868\u5355\u4e2d\u6240\u6709\u7684 input \u5143\u7d20<\/strong>
\n\t \n<\/p>\n\r\n<form>\r\n<label>Name:<\/label>\r\n<input name="name" \/>\r\n<fieldset>\r\n <label>Newsletter:<\/label>\r\n <input name="newsletter" \/>\r\n<\/fieldset>\r\n<\/form>\r\n<input name="none" \/> \r\n$("form input") \r\n\u7ed3\u679c: \r\n[ , ]<\/pre>\n\n\t$("A>B") \u67e5\u627eA\u5143\u7d20\u4e0b\u9762\u7684\u76f4\u63a5\u5b50\u8282\u70b9
\n\t\u4f8b\u5b50\uff1a\u5339\u914d\u8868\u5355\u4e2d\u6240\u6709\u7684\u5b50\u7ea7input\u5143\u7d20\u3002<\/strong> \n<\/p>\n\r\n<form>\r\n<label>Name:<\/label>\r\n<input name="name" \/>\r\n<fieldset>\r\n <label>Newsletter:<\/label>\r\n <input name="newsletter" \/>\r\n<\/fieldset>\r\n<\/form>\r\n<input name="none" \/> \r\n$("form > input") \r\n\u7ed3\u679c: \r\n[ ] <\/pre>\n\n\t$("A+B") \u67e5\u627eA\u5143\u7d20\u540e\u9762\u7684\u5144\u5f1f\u8282\u70b9\uff0c\u5305\u62ec\u975e\u76f4\u63a5\u5b50\u8282\u70b9
\n\t\u4f8b\u5b50\uff1a\u5339\u914d\u6240\u6709\u8ddf\u5728 label \u540e\u9762\u7684 input \u5143\u7d20<\/strong> \n<\/p>\n\r\n<form>\r\n<label>Name:<\/label>\r\n<input name="name" \/>\r\n<fieldset>\r\n <label>Newsletter:<\/label>\r\n <input name="newsletter" \/>\r\n<\/fieldset>\r\n<\/form>\r\n<input name="none" \/> \r\n$("label + input") \r\n\u7ed3\u679c: \r\n[ , ]<\/pre>\n\n\t$("A~B") \u67e5\u627eA\u5143\u7d20\u540e\u9762\u7684\u5144\u5f1f\u8282\u70b9\uff0c\u4e0d\u5305\u62ec\u975e\u76f4\u63a5\u5b50\u8282\u70b9
\n\t\u4f8b\u5b50\uff1a\u627e\u5230\u6240\u6709\u4e0e\u8868\u5355\u540c\u8f88\u7684 input \u5143\u7d20<\/strong> \n<\/p>\n\r\n<form>\r\n<label>Name:<\/label>\r\n<input name="name" \/>\r\n<fieldset>\r\n <label>Newsletter:<\/label>\r\n <input name="newsletter" \/>\r\n<\/fieldset>\r\n<\/form>\r\n<input name="none" \/> \r\n$("form ~ input") \r\n\u7ed3\u679c: \r\n[ ] \r\n<\/pre>\n<\/p>
\u6700\u540e\uff0c\u6b22\u8fce\u5173\u6ce8\u6211\u7684\u4e2a\u4eba\u5fae\u4fe1\u516c\u4f17\u53f7\uff1a\u4e1a\u4f59\u8349\uff08yyucao\uff09\uff01\u53ef\u52a0\u4f5c\u8005\u5fae\u4fe1\u53f7\uff1axttblog2<\/font>\u3002\u5907\u6ce8\uff1a\u201c1\u201d\uff0c\u6dfb\u52a0\u535a\u4e3b\u5fae\u4fe1\u62c9\u4f60\u8fdb\u5fae\u4fe1\u7fa4\u3002\u5907\u6ce8\u9519\u8bef\u4e0d\u4f1a\u540c\u610f\u597d\u53cb\u7533\u8bf7\u3002<\/b>\u518d\u6b21\u611f\u8c22\u60a8\u7684\u5173\u6ce8\uff01\u540e\u7eed\u6709\u7cbe\u5f69\u5185\u5bb9\u4f1a\u7b2c\u4e00\u65f6\u95f4\u53d1\u7ed9\u60a8\uff01\u539f\u521b\u6587\u7ae0\u6295\u7a3f\u8bf7\u53d1\u9001\u81f3532009913@qq.com\u90ae\u7bb1\u3002\u5546\u52a1\u5408\u4f5c\u4e5f\u53ef\u6dfb\u52a0\u4f5c\u8005\u5fae\u4fe1\u8fdb\u884c\u8054\u7cfb\uff01<\/p>\u672c\u6587\u539f\u6587\u51fa\u5904\uff1a\u4e1a\u4f59\u8349<\/a>\uff1a » jQuery\u9009\u62e9\u5668\u4f7f\u7528\u6559\u7a0b<\/a><\/p>","protected":false},"excerpt":{"rendered":"jQuery \u7684\u9009\u62e9\u5668\u53ef\u8c13\u4e4b\u5f3a\u5927\u65e0\u6bd4\uff0c\u8fd9\u91cc\u7b80\u5355\u5730\u603b\u7ed3\u4e00\u4e0b\u5e38\u7528\u7684\u5143\u7d20\u67e5\u627e\u65b9\u6cd5 $("#my […]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4],"tags":[49,776,778,775,777,779],"class_list":["post-1050","post","type-post","status-publish","format-standard","hentry","category-html5","tag-jquery","tag-776","tag-778","tag-775","tag-777","tag-779"],"_links":{"self":[{"href":"https:\/\/www.xttblog.com\/index.php?rest_route=\/wp\/v2\/posts\/1050","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.xttblog.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.xttblog.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.xttblog.com\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.xttblog.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1050"}],"version-history":[{"count":1,"href":"https:\/\/www.xttblog.com\/index.php?rest_route=\/wp\/v2\/posts\/1050\/revisions"}],"predecessor-version":[{"id":1051,"href":"https:\/\/www.xttblog.com\/index.php?rest_route=\/wp\/v2\/posts\/1050\/revisions\/1051"}],"wp:attachment":[{"href":"https:\/\/www.xttblog.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1050"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.xttblog.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1050"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.xttblog.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1050"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
\n\t\u5185\u5bb9\u8fc7\u6ee4\u9009\u62e9\u5668
\n<\/h2>\n\r\n$("div:contains('John')") \u9009\u62e9\u6240\u6709div\u4e2d\u542b\u6709John\u6587\u672c\u7684\u5143\u7d20 \r\n$("td:empty") \u9009\u62e9\u6240\u6709\u7684\u4e3a\u7a7a\uff08\u4e5f\u4e0d\u5305\u62ec\u6587\u672c\u8282\u70b9\uff09\u7684td\u5143\u7d20\u7684\u6570\u7ec4 \r\n$("div:has(p)") \u9009\u62e9\u6240\u6709\u542b\u6709p\u6807\u7b7e\u7684div\u5143\u7d20 \r\n$("td:parent") \u9009\u62e9\u6240\u6709\u7684\u4ee5td\u4e3a\u7236\u8282\u70b9\u7684\u5143\u7d20\u6570\u7ec4 <\/pre>\n\n\t\u53ef\u89c6\u5316\u8fc7\u6ee4\u9009\u62e9\u5668
\n<\/h2>\n\r\n$("div:hidden") \u9009\u62e9\u6240\u6709\u7684\u88abhidden\u7684div\u5143\u7d20 \r\n$("div:visible") \u9009\u62e9\u6240\u6709\u7684\u53ef\u89c6\u5316\u7684div\u5143\u7d20<\/pre>\n\n\t\u5c5e\u6027\u8fc7\u6ee4\u9009\u62e9\u5668
\n<\/h2>\n\r\n$("div[id]") \u9009\u62e9\u6240\u6709\u542b\u6709id\u5c5e\u6027\u7684div\u5143\u7d20 \r\n$("input[name='newsletter']") \u9009\u62e9\u6240\u6709\u7684name\u5c5e\u6027\u7b49\u4e8e'newsletter'\u7684input\u5143\u7d20 \r\n$("input[name!='newsletter']") \u9009\u62e9\u6240\u6709\u7684name\u5c5e\u6027\u4e0d\u7b49\u4e8e'newsletter'\u7684input\u5143\u7d20 \r\n$("input[name^='news']") \u9009\u62e9\u6240\u6709\u7684name\u5c5e\u6027\u4ee5'news'\u5f00\u5934\u7684input\u5143\u7d20 \r\n$("input[name$='news']") \u9009\u62e9\u6240\u6709\u7684name\u5c5e\u6027\u4ee5'news'\u7ed3\u5c3e\u7684input\u5143\u7d20 \r\n$("input[name*='man']") \u9009\u62e9\u6240\u6709\u7684name\u5c5e\u6027\u5305\u542b'news'\u7684input\u5143\u7d20 \r\n$("input[id][name$='man']") \u53ef\u4ee5\u4f7f\u7528\u591a\u4e2a\u5c5e\u6027\u8fdb\u884c\u8054\u5408\u9009\u62e9\uff0c\u8be5\u9009\u62e9\u5668\u662f\u5f97\u5230\u6240\u6709\u7684\u542b\u6709id\u5c5e\u6027\u5e76\u4e14\u90a3\u4e48\u5c5e\u6027\u4ee5man\u7ed3\u5c3e\u7684\u5143\u7d20<\/pre>\n\n\t\u5b50\u5143\u7d20\u8fc7\u6ee4\u9009\u62e9\u5668
\n<\/h2>\n\r\n$("ul li:nth-child(2)"),$("ul li:nth-child(odd)"),$("ul li:nth-child(3n + 1)") \r\n$("div span:first-child") \u8fd4\u56de\u6240\u6709\u7684div\u5143\u7d20\u7684\u7b2c\u4e00\u4e2a\u5b50\u8282\u70b9\u7684\u6570\u7ec4 \r\n$("div span:last-child") \u8fd4\u56de\u6240\u6709\u7684div\u5143\u7d20\u7684\u6700\u540e\u4e00\u4e2a\u8282\u70b9\u7684\u6570\u7ec4 \r\n$("div button:only-child") \u8fd4\u56de\u6240\u6709\u7684div\u4e2d\u53ea\u6709\u552f\u4e00\u4e00\u4e2a\u5b50\u8282\u70b9\u7684\u6240\u6709\u5b50\u8282\u70b9\u7684\u6570\u7ec4 <\/pre>\n\n\t\u8868\u5355\u5143\u7d20\u9009\u62e9\u5668
\n<\/h2>\n\r\n$(":input") \u9009\u62e9\u6240\u6709\u7684\u8868\u5355\u8f93\u5165\u5143\u7d20\uff0c\u5305\u62ecinput, textarea, select \u548c button \r\n$(":text") \u9009\u62e9\u6240\u6709\u7684text input\u5143\u7d20 \r\n$(":password") \u9009\u62e9\u6240\u6709\u7684password input\u5143\u7d20 \r\n$(":radio") \u9009\u62e9\u6240\u6709\u7684radio input\u5143\u7d20 \r\n$(":checkbox") \u9009\u62e9\u6240\u6709\u7684checkbox input\u5143\u7d20 \r\n$(":submit") \u9009\u62e9\u6240\u6709\u7684submit input\u5143\u7d20 \r\n$(":image") \u9009\u62e9\u6240\u6709\u7684image input\u5143\u7d20 \r\n$(":reset") \u9009\u62e9\u6240\u6709\u7684reset input\u5143\u7d20 \r\n$(":button") \u9009\u62e9\u6240\u6709\u7684button input\u5143\u7d20 \r\n$(":file") \u9009\u62e9\u6240\u6709\u7684file input\u5143\u7d20 \r\n$(":hidden") \u9009\u62e9\u6240\u6709\u7c7b\u578b\u4e3ahidden\u7684input\u5143\u7d20\u6216\u8868\u5355\u7684\u9690\u85cf\u57df <\/pre>\n\n\t\u8868\u5355\u5143\u7d20\u8fc7\u6ee4\u9009\u62e9\u5668
\n<\/h2>\n\r\n$(":enabled") \u9009\u62e9\u6240\u6709\u7684\u53ef\u64cd\u4f5c\u7684\u8868\u5355\u5143\u7d20 \r\n$(":disabled") \u9009\u62e9\u6240\u6709\u7684\u4e0d\u53ef\u64cd\u4f5c\u7684\u8868\u5355\u5143\u7d20 \r\n$(":checked") \u9009\u62e9\u6240\u6709\u7684\u88abchecked\u7684\u8868\u5355\u5143\u7d20 \r\n$("select option:selected") \u9009\u62e9\u6240\u6709\u7684select \u7684\u5b50\u5143\u7d20\u4e2d\u88abselected\u7684\u5143\u7d20 \r\n\u9009\u53d6\u4e00\u4e2a name \u4e3a”S_03_22″\u7684input text\u6846\u7684\u4e0a\u4e00\u4e2atd\u7684text\u503c\r\n$(”input[@ name =S_03_22]“).parent().prev().text() \r\n\u540d\u5b57\u4ee5”S_”\u5f00\u59cb\uff0c\u5e76\u4e14\u4e0d\u662f\u4ee5”_R”\u7ed3\u5c3e\u7684\r\n$(”input[@ name ^='S_']“).not(”[@ name $='_R']“) \r\n\u4e00\u4e2a\u540d\u4e3a radio_01\u7684radio\u6240\u9009\u7684\u503c\r\n$(”input[@ name =radio_01][@checked]“).val(); \r\n$("A B") \u67e5\u627eA\u5143\u7d20\u4e0b\u9762\u7684\u6240\u6709\u5b50\u8282\u70b9\uff0c\u5305\u62ec\u975e\u76f4\u63a5\u5b50\u8282\u70b9\r\n$("A>B") \u67e5\u627eA\u5143\u7d20\u4e0b\u9762\u7684\u76f4\u63a5\u5b50\u8282\u70b9\r\n$("A+B") \u67e5\u627eA\u5143\u7d20\u540e\u9762\u7684\u5144\u5f1f\u8282\u70b9\uff0c\u5305\u62ec\u975e\u76f4\u63a5\u5b50\u8282\u70b9\r\n$("A~B") \u67e5\u627eA\u5143\u7d20\u540e\u9762\u7684\u5144\u5f1f\u8282\u70b9\uff0c\u4e0d\u5305\u62ec\u975e\u76f4\u63a5\u5b50\u8282\u70b9 \r\n$("A B") \u67e5\u627eA\u5143\u7d20\u4e0b\u9762\u7684\u6240\u6709\u5b50\u8282\u70b9\uff0c\u5305\u62ec\u975e\u76f4\u63a5\u5b50\u8282\u70b9<\/pre>\n\n\t\u4f8b\u5b50\uff1a\u627e\u5230\u8868\u5355\u4e2d\u6240\u6709\u7684 input \u5143\u7d20<\/strong>
\n\t \n<\/p>\n\r\n<form>\r\n<label>Name:<\/label>\r\n<input name="name" \/>\r\n<fieldset>\r\n <label>Newsletter:<\/label>\r\n <input name="newsletter" \/>\r\n<\/fieldset>\r\n<\/form>\r\n<input name="none" \/> \r\n$("form input") \r\n\u7ed3\u679c: \r\n[ , ]<\/pre>\n\n\t$("A>B") \u67e5\u627eA\u5143\u7d20\u4e0b\u9762\u7684\u76f4\u63a5\u5b50\u8282\u70b9
\n\t\u4f8b\u5b50\uff1a\u5339\u914d\u8868\u5355\u4e2d\u6240\u6709\u7684\u5b50\u7ea7input\u5143\u7d20\u3002<\/strong> \n<\/p>\n\r\n<form>\r\n<label>Name:<\/label>\r\n<input name="name" \/>\r\n<fieldset>\r\n <label>Newsletter:<\/label>\r\n <input name="newsletter" \/>\r\n<\/fieldset>\r\n<\/form>\r\n<input name="none" \/> \r\n$("form > input") \r\n\u7ed3\u679c: \r\n[ ] <\/pre>\n\n\t$("A+B") \u67e5\u627eA\u5143\u7d20\u540e\u9762\u7684\u5144\u5f1f\u8282\u70b9\uff0c\u5305\u62ec\u975e\u76f4\u63a5\u5b50\u8282\u70b9
\n\t\u4f8b\u5b50\uff1a\u5339\u914d\u6240\u6709\u8ddf\u5728 label \u540e\u9762\u7684 input \u5143\u7d20<\/strong> \n<\/p>\n\r\n<form>\r\n<label>Name:<\/label>\r\n<input name="name" \/>\r\n<fieldset>\r\n <label>Newsletter:<\/label>\r\n <input name="newsletter" \/>\r\n<\/fieldset>\r\n<\/form>\r\n<input name="none" \/> \r\n$("label + input") \r\n\u7ed3\u679c: \r\n[ , ]<\/pre>\n\n\t$("A~B") \u67e5\u627eA\u5143\u7d20\u540e\u9762\u7684\u5144\u5f1f\u8282\u70b9\uff0c\u4e0d\u5305\u62ec\u975e\u76f4\u63a5\u5b50\u8282\u70b9
\n\t\u4f8b\u5b50\uff1a\u627e\u5230\u6240\u6709\u4e0e\u8868\u5355\u540c\u8f88\u7684 input \u5143\u7d20<\/strong> \n<\/p>\n\r\n<form>\r\n<label>Name:<\/label>\r\n<input name="name" \/>\r\n<fieldset>\r\n <label>Newsletter:<\/label>\r\n <input name="newsletter" \/>\r\n<\/fieldset>\r\n<\/form>\r\n<input name="none" \/> \r\n$("form ~ input") \r\n\u7ed3\u679c: \r\n[ ] \r\n<\/pre>\n<\/p>
\u6700\u540e\uff0c\u6b22\u8fce\u5173\u6ce8\u6211\u7684\u4e2a\u4eba\u5fae\u4fe1\u516c\u4f17\u53f7\uff1a\u4e1a\u4f59\u8349\uff08yyucao\uff09\uff01\u53ef\u52a0\u4f5c\u8005\u5fae\u4fe1\u53f7\uff1axttblog2<\/font>\u3002\u5907\u6ce8\uff1a\u201c1\u201d\uff0c\u6dfb\u52a0\u535a\u4e3b\u5fae\u4fe1\u62c9\u4f60\u8fdb\u5fae\u4fe1\u7fa4\u3002\u5907\u6ce8\u9519\u8bef\u4e0d\u4f1a\u540c\u610f\u597d\u53cb\u7533\u8bf7\u3002<\/b>\u518d\u6b21\u611f\u8c22\u60a8\u7684\u5173\u6ce8\uff01\u540e\u7eed\u6709\u7cbe\u5f69\u5185\u5bb9\u4f1a\u7b2c\u4e00\u65f6\u95f4\u53d1\u7ed9\u60a8\uff01\u539f\u521b\u6587\u7ae0\u6295\u7a3f\u8bf7\u53d1\u9001\u81f3532009913@qq.com\u90ae\u7bb1\u3002\u5546\u52a1\u5408\u4f5c\u4e5f\u53ef\u6dfb\u52a0\u4f5c\u8005\u5fae\u4fe1\u8fdb\u884c\u8054\u7cfb\uff01<\/p>\u672c\u6587\u539f\u6587\u51fa\u5904\uff1a\u4e1a\u4f59\u8349<\/a>\uff1a » jQuery\u9009\u62e9\u5668\u4f7f\u7528\u6559\u7a0b<\/a><\/p>","protected":false},"excerpt":{"rendered":"jQuery \u7684\u9009\u62e9\u5668\u53ef\u8c13\u4e4b\u5f3a\u5927\u65e0\u6bd4\uff0c\u8fd9\u91cc\u7b80\u5355\u5730\u603b\u7ed3\u4e00\u4e0b\u5e38\u7528\u7684\u5143\u7d20\u67e5\u627e\u65b9\u6cd5 $("#my […]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4],"tags":[49,776,778,775,777,779],"class_list":["post-1050","post","type-post","status-publish","format-standard","hentry","category-html5","tag-jquery","tag-776","tag-778","tag-775","tag-777","tag-779"],"_links":{"self":[{"href":"https:\/\/www.xttblog.com\/index.php?rest_route=\/wp\/v2\/posts\/1050","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.xttblog.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.xttblog.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.xttblog.com\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.xttblog.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1050"}],"version-history":[{"count":1,"href":"https:\/\/www.xttblog.com\/index.php?rest_route=\/wp\/v2\/posts\/1050\/revisions"}],"predecessor-version":[{"id":1051,"href":"https:\/\/www.xttblog.com\/index.php?rest_route=\/wp\/v2\/posts\/1050\/revisions\/1051"}],"wp:attachment":[{"href":"https:\/\/www.xttblog.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1050"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.xttblog.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1050"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.xttblog.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1050"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
\n\t\u53ef\u89c6\u5316\u8fc7\u6ee4\u9009\u62e9\u5668
\n<\/h2>\n\r\n$("div:hidden") \u9009\u62e9\u6240\u6709\u7684\u88abhidden\u7684div\u5143\u7d20 \r\n$("div:visible") \u9009\u62e9\u6240\u6709\u7684\u53ef\u89c6\u5316\u7684div\u5143\u7d20<\/pre>\n\n\t\u5c5e\u6027\u8fc7\u6ee4\u9009\u62e9\u5668
\n<\/h2>\n\r\n$("div[id]") \u9009\u62e9\u6240\u6709\u542b\u6709id\u5c5e\u6027\u7684div\u5143\u7d20 \r\n$("input[name='newsletter']") \u9009\u62e9\u6240\u6709\u7684name\u5c5e\u6027\u7b49\u4e8e'newsletter'\u7684input\u5143\u7d20 \r\n$("input[name!='newsletter']") \u9009\u62e9\u6240\u6709\u7684name\u5c5e\u6027\u4e0d\u7b49\u4e8e'newsletter'\u7684input\u5143\u7d20 \r\n$("input[name^='news']") \u9009\u62e9\u6240\u6709\u7684name\u5c5e\u6027\u4ee5'news'\u5f00\u5934\u7684input\u5143\u7d20 \r\n$("input[name$='news']") \u9009\u62e9\u6240\u6709\u7684name\u5c5e\u6027\u4ee5'news'\u7ed3\u5c3e\u7684input\u5143\u7d20 \r\n$("input[name*='man']") \u9009\u62e9\u6240\u6709\u7684name\u5c5e\u6027\u5305\u542b'news'\u7684input\u5143\u7d20 \r\n$("input[id][name$='man']") \u53ef\u4ee5\u4f7f\u7528\u591a\u4e2a\u5c5e\u6027\u8fdb\u884c\u8054\u5408\u9009\u62e9\uff0c\u8be5\u9009\u62e9\u5668\u662f\u5f97\u5230\u6240\u6709\u7684\u542b\u6709id\u5c5e\u6027\u5e76\u4e14\u90a3\u4e48\u5c5e\u6027\u4ee5man\u7ed3\u5c3e\u7684\u5143\u7d20<\/pre>\n\n\t\u5b50\u5143\u7d20\u8fc7\u6ee4\u9009\u62e9\u5668
\n<\/h2>\n\r\n$("ul li:nth-child(2)"),$("ul li:nth-child(odd)"),$("ul li:nth-child(3n + 1)") \r\n$("div span:first-child") \u8fd4\u56de\u6240\u6709\u7684div\u5143\u7d20\u7684\u7b2c\u4e00\u4e2a\u5b50\u8282\u70b9\u7684\u6570\u7ec4 \r\n$("div span:last-child") \u8fd4\u56de\u6240\u6709\u7684div\u5143\u7d20\u7684\u6700\u540e\u4e00\u4e2a\u8282\u70b9\u7684\u6570\u7ec4 \r\n$("div button:only-child") \u8fd4\u56de\u6240\u6709\u7684div\u4e2d\u53ea\u6709\u552f\u4e00\u4e00\u4e2a\u5b50\u8282\u70b9\u7684\u6240\u6709\u5b50\u8282\u70b9\u7684\u6570\u7ec4 <\/pre>\n\n\t\u8868\u5355\u5143\u7d20\u9009\u62e9\u5668
\n<\/h2>\n\r\n$(":input") \u9009\u62e9\u6240\u6709\u7684\u8868\u5355\u8f93\u5165\u5143\u7d20\uff0c\u5305\u62ecinput, textarea, select \u548c button \r\n$(":text") \u9009\u62e9\u6240\u6709\u7684text input\u5143\u7d20 \r\n$(":password") \u9009\u62e9\u6240\u6709\u7684password input\u5143\u7d20 \r\n$(":radio") \u9009\u62e9\u6240\u6709\u7684radio input\u5143\u7d20 \r\n$(":checkbox") \u9009\u62e9\u6240\u6709\u7684checkbox input\u5143\u7d20 \r\n$(":submit") \u9009\u62e9\u6240\u6709\u7684submit input\u5143\u7d20 \r\n$(":image") \u9009\u62e9\u6240\u6709\u7684image input\u5143\u7d20 \r\n$(":reset") \u9009\u62e9\u6240\u6709\u7684reset input\u5143\u7d20 \r\n$(":button") \u9009\u62e9\u6240\u6709\u7684button input\u5143\u7d20 \r\n$(":file") \u9009\u62e9\u6240\u6709\u7684file input\u5143\u7d20 \r\n$(":hidden") \u9009\u62e9\u6240\u6709\u7c7b\u578b\u4e3ahidden\u7684input\u5143\u7d20\u6216\u8868\u5355\u7684\u9690\u85cf\u57df <\/pre>\n\n\t\u8868\u5355\u5143\u7d20\u8fc7\u6ee4\u9009\u62e9\u5668
\n<\/h2>\n\r\n$(":enabled") \u9009\u62e9\u6240\u6709\u7684\u53ef\u64cd\u4f5c\u7684\u8868\u5355\u5143\u7d20 \r\n$(":disabled") \u9009\u62e9\u6240\u6709\u7684\u4e0d\u53ef\u64cd\u4f5c\u7684\u8868\u5355\u5143\u7d20 \r\n$(":checked") \u9009\u62e9\u6240\u6709\u7684\u88abchecked\u7684\u8868\u5355\u5143\u7d20 \r\n$("select option:selected") \u9009\u62e9\u6240\u6709\u7684select \u7684\u5b50\u5143\u7d20\u4e2d\u88abselected\u7684\u5143\u7d20 \r\n\u9009\u53d6\u4e00\u4e2a name \u4e3a”S_03_22″\u7684input text\u6846\u7684\u4e0a\u4e00\u4e2atd\u7684text\u503c\r\n$(”input[@ name =S_03_22]“).parent().prev().text() \r\n\u540d\u5b57\u4ee5”S_”\u5f00\u59cb\uff0c\u5e76\u4e14\u4e0d\u662f\u4ee5”_R”\u7ed3\u5c3e\u7684\r\n$(”input[@ name ^='S_']“).not(”[@ name $='_R']“) \r\n\u4e00\u4e2a\u540d\u4e3a radio_01\u7684radio\u6240\u9009\u7684\u503c\r\n$(”input[@ name =radio_01][@checked]“).val(); \r\n$("A B") \u67e5\u627eA\u5143\u7d20\u4e0b\u9762\u7684\u6240\u6709\u5b50\u8282\u70b9\uff0c\u5305\u62ec\u975e\u76f4\u63a5\u5b50\u8282\u70b9\r\n$("A>B") \u67e5\u627eA\u5143\u7d20\u4e0b\u9762\u7684\u76f4\u63a5\u5b50\u8282\u70b9\r\n$("A+B") \u67e5\u627eA\u5143\u7d20\u540e\u9762\u7684\u5144\u5f1f\u8282\u70b9\uff0c\u5305\u62ec\u975e\u76f4\u63a5\u5b50\u8282\u70b9\r\n$("A~B") \u67e5\u627eA\u5143\u7d20\u540e\u9762\u7684\u5144\u5f1f\u8282\u70b9\uff0c\u4e0d\u5305\u62ec\u975e\u76f4\u63a5\u5b50\u8282\u70b9 \r\n$("A B") \u67e5\u627eA\u5143\u7d20\u4e0b\u9762\u7684\u6240\u6709\u5b50\u8282\u70b9\uff0c\u5305\u62ec\u975e\u76f4\u63a5\u5b50\u8282\u70b9<\/pre>\n\n\t\u4f8b\u5b50\uff1a\u627e\u5230\u8868\u5355\u4e2d\u6240\u6709\u7684 input \u5143\u7d20<\/strong>
\n\t \n<\/p>\n\r\n<form>\r\n<label>Name:<\/label>\r\n<input name="name" \/>\r\n<fieldset>\r\n <label>Newsletter:<\/label>\r\n <input name="newsletter" \/>\r\n<\/fieldset>\r\n<\/form>\r\n<input name="none" \/> \r\n$("form input") \r\n\u7ed3\u679c: \r\n[ , ]<\/pre>\n\n\t$("A>B") \u67e5\u627eA\u5143\u7d20\u4e0b\u9762\u7684\u76f4\u63a5\u5b50\u8282\u70b9
\n\t\u4f8b\u5b50\uff1a\u5339\u914d\u8868\u5355\u4e2d\u6240\u6709\u7684\u5b50\u7ea7input\u5143\u7d20\u3002<\/strong> \n<\/p>\n\r\n<form>\r\n<label>Name:<\/label>\r\n<input name="name" \/>\r\n<fieldset>\r\n <label>Newsletter:<\/label>\r\n <input name="newsletter" \/>\r\n<\/fieldset>\r\n<\/form>\r\n<input name="none" \/> \r\n$("form > input") \r\n\u7ed3\u679c: \r\n[ ] <\/pre>\n\n\t$("A+B") \u67e5\u627eA\u5143\u7d20\u540e\u9762\u7684\u5144\u5f1f\u8282\u70b9\uff0c\u5305\u62ec\u975e\u76f4\u63a5\u5b50\u8282\u70b9
\n\t\u4f8b\u5b50\uff1a\u5339\u914d\u6240\u6709\u8ddf\u5728 label \u540e\u9762\u7684 input \u5143\u7d20<\/strong> \n<\/p>\n\r\n<form>\r\n<label>Name:<\/label>\r\n<input name="name" \/>\r\n<fieldset>\r\n <label>Newsletter:<\/label>\r\n <input name="newsletter" \/>\r\n<\/fieldset>\r\n<\/form>\r\n<input name="none" \/> \r\n$("label + input") \r\n\u7ed3\u679c: \r\n[ , ]<\/pre>\n\n\t$("A~B") \u67e5\u627eA\u5143\u7d20\u540e\u9762\u7684\u5144\u5f1f\u8282\u70b9\uff0c\u4e0d\u5305\u62ec\u975e\u76f4\u63a5\u5b50\u8282\u70b9
\n\t\u4f8b\u5b50\uff1a\u627e\u5230\u6240\u6709\u4e0e\u8868\u5355\u540c\u8f88\u7684 input \u5143\u7d20<\/strong> \n<\/p>\n\r\n<form>\r\n<label>Name:<\/label>\r\n<input name="name" \/>\r\n<fieldset>\r\n <label>Newsletter:<\/label>\r\n <input name="newsletter" \/>\r\n<\/fieldset>\r\n<\/form>\r\n<input name="none" \/> \r\n$("form ~ input") \r\n\u7ed3\u679c: \r\n[ ] \r\n<\/pre>\n<\/p>
\u6700\u540e\uff0c\u6b22\u8fce\u5173\u6ce8\u6211\u7684\u4e2a\u4eba\u5fae\u4fe1\u516c\u4f17\u53f7\uff1a\u4e1a\u4f59\u8349\uff08yyucao\uff09\uff01\u53ef\u52a0\u4f5c\u8005\u5fae\u4fe1\u53f7\uff1axttblog2<\/font>\u3002\u5907\u6ce8\uff1a\u201c1\u201d\uff0c\u6dfb\u52a0\u535a\u4e3b\u5fae\u4fe1\u62c9\u4f60\u8fdb\u5fae\u4fe1\u7fa4\u3002\u5907\u6ce8\u9519\u8bef\u4e0d\u4f1a\u540c\u610f\u597d\u53cb\u7533\u8bf7\u3002<\/b>\u518d\u6b21\u611f\u8c22\u60a8\u7684\u5173\u6ce8\uff01\u540e\u7eed\u6709\u7cbe\u5f69\u5185\u5bb9\u4f1a\u7b2c\u4e00\u65f6\u95f4\u53d1\u7ed9\u60a8\uff01\u539f\u521b\u6587\u7ae0\u6295\u7a3f\u8bf7\u53d1\u9001\u81f3532009913@qq.com\u90ae\u7bb1\u3002\u5546\u52a1\u5408\u4f5c\u4e5f\u53ef\u6dfb\u52a0\u4f5c\u8005\u5fae\u4fe1\u8fdb\u884c\u8054\u7cfb\uff01<\/p>\u672c\u6587\u539f\u6587\u51fa\u5904\uff1a\u4e1a\u4f59\u8349<\/a>\uff1a » jQuery\u9009\u62e9\u5668\u4f7f\u7528\u6559\u7a0b<\/a><\/p>","protected":false},"excerpt":{"rendered":"jQuery \u7684\u9009\u62e9\u5668\u53ef\u8c13\u4e4b\u5f3a\u5927\u65e0\u6bd4\uff0c\u8fd9\u91cc\u7b80\u5355\u5730\u603b\u7ed3\u4e00\u4e0b\u5e38\u7528\u7684\u5143\u7d20\u67e5\u627e\u65b9\u6cd5 $("#my […]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4],"tags":[49,776,778,775,777,779],"class_list":["post-1050","post","type-post","status-publish","format-standard","hentry","category-html5","tag-jquery","tag-776","tag-778","tag-775","tag-777","tag-779"],"_links":{"self":[{"href":"https:\/\/www.xttblog.com\/index.php?rest_route=\/wp\/v2\/posts\/1050","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.xttblog.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.xttblog.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.xttblog.com\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.xttblog.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1050"}],"version-history":[{"count":1,"href":"https:\/\/www.xttblog.com\/index.php?rest_route=\/wp\/v2\/posts\/1050\/revisions"}],"predecessor-version":[{"id":1051,"href":"https:\/\/www.xttblog.com\/index.php?rest_route=\/wp\/v2\/posts\/1050\/revisions\/1051"}],"wp:attachment":[{"href":"https:\/\/www.xttblog.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1050"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.xttblog.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1050"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.xttblog.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1050"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
\n\t\u5c5e\u6027\u8fc7\u6ee4\u9009\u62e9\u5668
\n<\/h2>\n\r\n$("div[id]") \u9009\u62e9\u6240\u6709\u542b\u6709id\u5c5e\u6027\u7684div\u5143\u7d20 \r\n$("input[name='newsletter']") \u9009\u62e9\u6240\u6709\u7684name\u5c5e\u6027\u7b49\u4e8e'newsletter'\u7684input\u5143\u7d20 \r\n$("input[name!='newsletter']") \u9009\u62e9\u6240\u6709\u7684name\u5c5e\u6027\u4e0d\u7b49\u4e8e'newsletter'\u7684input\u5143\u7d20 \r\n$("input[name^='news']") \u9009\u62e9\u6240\u6709\u7684name\u5c5e\u6027\u4ee5'news'\u5f00\u5934\u7684input\u5143\u7d20 \r\n$("input[name$='news']") \u9009\u62e9\u6240\u6709\u7684name\u5c5e\u6027\u4ee5'news'\u7ed3\u5c3e\u7684input\u5143\u7d20 \r\n$("input[name*='man']") \u9009\u62e9\u6240\u6709\u7684name\u5c5e\u6027\u5305\u542b'news'\u7684input\u5143\u7d20 \r\n$("input[id][name$='man']") \u53ef\u4ee5\u4f7f\u7528\u591a\u4e2a\u5c5e\u6027\u8fdb\u884c\u8054\u5408\u9009\u62e9\uff0c\u8be5\u9009\u62e9\u5668\u662f\u5f97\u5230\u6240\u6709\u7684\u542b\u6709id\u5c5e\u6027\u5e76\u4e14\u90a3\u4e48\u5c5e\u6027\u4ee5man\u7ed3\u5c3e\u7684\u5143\u7d20<\/pre>\n\n\t\u5b50\u5143\u7d20\u8fc7\u6ee4\u9009\u62e9\u5668
\n<\/h2>\n\r\n$("ul li:nth-child(2)"),$("ul li:nth-child(odd)"),$("ul li:nth-child(3n + 1)") \r\n$("div span:first-child") \u8fd4\u56de\u6240\u6709\u7684div\u5143\u7d20\u7684\u7b2c\u4e00\u4e2a\u5b50\u8282\u70b9\u7684\u6570\u7ec4 \r\n$("div span:last-child") \u8fd4\u56de\u6240\u6709\u7684div\u5143\u7d20\u7684\u6700\u540e\u4e00\u4e2a\u8282\u70b9\u7684\u6570\u7ec4 \r\n$("div button:only-child") \u8fd4\u56de\u6240\u6709\u7684div\u4e2d\u53ea\u6709\u552f\u4e00\u4e00\u4e2a\u5b50\u8282\u70b9\u7684\u6240\u6709\u5b50\u8282\u70b9\u7684\u6570\u7ec4 <\/pre>\n\n\t\u8868\u5355\u5143\u7d20\u9009\u62e9\u5668
\n<\/h2>\n\r\n$(":input") \u9009\u62e9\u6240\u6709\u7684\u8868\u5355\u8f93\u5165\u5143\u7d20\uff0c\u5305\u62ecinput, textarea, select \u548c button \r\n$(":text") \u9009\u62e9\u6240\u6709\u7684text input\u5143\u7d20 \r\n$(":password") \u9009\u62e9\u6240\u6709\u7684password input\u5143\u7d20 \r\n$(":radio") \u9009\u62e9\u6240\u6709\u7684radio input\u5143\u7d20 \r\n$(":checkbox") \u9009\u62e9\u6240\u6709\u7684checkbox input\u5143\u7d20 \r\n$(":submit") \u9009\u62e9\u6240\u6709\u7684submit input\u5143\u7d20 \r\n$(":image") \u9009\u62e9\u6240\u6709\u7684image input\u5143\u7d20 \r\n$(":reset") \u9009\u62e9\u6240\u6709\u7684reset input\u5143\u7d20 \r\n$(":button") \u9009\u62e9\u6240\u6709\u7684button input\u5143\u7d20 \r\n$(":file") \u9009\u62e9\u6240\u6709\u7684file input\u5143\u7d20 \r\n$(":hidden") \u9009\u62e9\u6240\u6709\u7c7b\u578b\u4e3ahidden\u7684input\u5143\u7d20\u6216\u8868\u5355\u7684\u9690\u85cf\u57df <\/pre>\n\n\t\u8868\u5355\u5143\u7d20\u8fc7\u6ee4\u9009\u62e9\u5668
\n<\/h2>\n\r\n$(":enabled") \u9009\u62e9\u6240\u6709\u7684\u53ef\u64cd\u4f5c\u7684\u8868\u5355\u5143\u7d20 \r\n$(":disabled") \u9009\u62e9\u6240\u6709\u7684\u4e0d\u53ef\u64cd\u4f5c\u7684\u8868\u5355\u5143\u7d20 \r\n$(":checked") \u9009\u62e9\u6240\u6709\u7684\u88abchecked\u7684\u8868\u5355\u5143\u7d20 \r\n$("select option:selected") \u9009\u62e9\u6240\u6709\u7684select \u7684\u5b50\u5143\u7d20\u4e2d\u88abselected\u7684\u5143\u7d20 \r\n\u9009\u53d6\u4e00\u4e2a name \u4e3a”S_03_22″\u7684input text\u6846\u7684\u4e0a\u4e00\u4e2atd\u7684text\u503c\r\n$(”input[@ name =S_03_22]“).parent().prev().text() \r\n\u540d\u5b57\u4ee5”S_”\u5f00\u59cb\uff0c\u5e76\u4e14\u4e0d\u662f\u4ee5”_R”\u7ed3\u5c3e\u7684\r\n$(”input[@ name ^='S_']“).not(”[@ name $='_R']“) \r\n\u4e00\u4e2a\u540d\u4e3a radio_01\u7684radio\u6240\u9009\u7684\u503c\r\n$(”input[@ name =radio_01][@checked]“).val(); \r\n$("A B") \u67e5\u627eA\u5143\u7d20\u4e0b\u9762\u7684\u6240\u6709\u5b50\u8282\u70b9\uff0c\u5305\u62ec\u975e\u76f4\u63a5\u5b50\u8282\u70b9\r\n$("A>B") \u67e5\u627eA\u5143\u7d20\u4e0b\u9762\u7684\u76f4\u63a5\u5b50\u8282\u70b9\r\n$("A+B") \u67e5\u627eA\u5143\u7d20\u540e\u9762\u7684\u5144\u5f1f\u8282\u70b9\uff0c\u5305\u62ec\u975e\u76f4\u63a5\u5b50\u8282\u70b9\r\n$("A~B") \u67e5\u627eA\u5143\u7d20\u540e\u9762\u7684\u5144\u5f1f\u8282\u70b9\uff0c\u4e0d\u5305\u62ec\u975e\u76f4\u63a5\u5b50\u8282\u70b9 \r\n$("A B") \u67e5\u627eA\u5143\u7d20\u4e0b\u9762\u7684\u6240\u6709\u5b50\u8282\u70b9\uff0c\u5305\u62ec\u975e\u76f4\u63a5\u5b50\u8282\u70b9<\/pre>\n\n\t\u4f8b\u5b50\uff1a\u627e\u5230\u8868\u5355\u4e2d\u6240\u6709\u7684 input \u5143\u7d20<\/strong>
\n\t \n<\/p>\n\r\n<form>\r\n<label>Name:<\/label>\r\n<input name="name" \/>\r\n<fieldset>\r\n <label>Newsletter:<\/label>\r\n <input name="newsletter" \/>\r\n<\/fieldset>\r\n<\/form>\r\n<input name="none" \/> \r\n$("form input") \r\n\u7ed3\u679c: \r\n[ , ]<\/pre>\n\n\t$("A>B") \u67e5\u627eA\u5143\u7d20\u4e0b\u9762\u7684\u76f4\u63a5\u5b50\u8282\u70b9
\n\t\u4f8b\u5b50\uff1a\u5339\u914d\u8868\u5355\u4e2d\u6240\u6709\u7684\u5b50\u7ea7input\u5143\u7d20\u3002<\/strong> \n<\/p>\n\r\n<form>\r\n<label>Name:<\/label>\r\n<input name="name" \/>\r\n<fieldset>\r\n <label>Newsletter:<\/label>\r\n <input name="newsletter" \/>\r\n<\/fieldset>\r\n<\/form>\r\n<input name="none" \/> \r\n$("form > input") \r\n\u7ed3\u679c: \r\n[ ] <\/pre>\n\n\t$("A+B") \u67e5\u627eA\u5143\u7d20\u540e\u9762\u7684\u5144\u5f1f\u8282\u70b9\uff0c\u5305\u62ec\u975e\u76f4\u63a5\u5b50\u8282\u70b9
\n\t\u4f8b\u5b50\uff1a\u5339\u914d\u6240\u6709\u8ddf\u5728 label \u540e\u9762\u7684 input \u5143\u7d20<\/strong> \n<\/p>\n\r\n<form>\r\n<label>Name:<\/label>\r\n<input name="name" \/>\r\n<fieldset>\r\n <label>Newsletter:<\/label>\r\n <input name="newsletter" \/>\r\n<\/fieldset>\r\n<\/form>\r\n<input name="none" \/> \r\n$("label + input") \r\n\u7ed3\u679c: \r\n[ , ]<\/pre>\n\n\t$("A~B") \u67e5\u627eA\u5143\u7d20\u540e\u9762\u7684\u5144\u5f1f\u8282\u70b9\uff0c\u4e0d\u5305\u62ec\u975e\u76f4\u63a5\u5b50\u8282\u70b9
\n\t\u4f8b\u5b50\uff1a\u627e\u5230\u6240\u6709\u4e0e\u8868\u5355\u540c\u8f88\u7684 input \u5143\u7d20<\/strong> \n<\/p>\n\r\n<form>\r\n<label>Name:<\/label>\r\n<input name="name" \/>\r\n<fieldset>\r\n <label>Newsletter:<\/label>\r\n <input name="newsletter" \/>\r\n<\/fieldset>\r\n<\/form>\r\n<input name="none" \/> \r\n$("form ~ input") \r\n\u7ed3\u679c: \r\n[ ] \r\n<\/pre>\n<\/p>
\u6700\u540e\uff0c\u6b22\u8fce\u5173\u6ce8\u6211\u7684\u4e2a\u4eba\u5fae\u4fe1\u516c\u4f17\u53f7\uff1a\u4e1a\u4f59\u8349\uff08yyucao\uff09\uff01\u53ef\u52a0\u4f5c\u8005\u5fae\u4fe1\u53f7\uff1axttblog2<\/font>\u3002\u5907\u6ce8\uff1a\u201c1\u201d\uff0c\u6dfb\u52a0\u535a\u4e3b\u5fae\u4fe1\u62c9\u4f60\u8fdb\u5fae\u4fe1\u7fa4\u3002\u5907\u6ce8\u9519\u8bef\u4e0d\u4f1a\u540c\u610f\u597d\u53cb\u7533\u8bf7\u3002<\/b>\u518d\u6b21\u611f\u8c22\u60a8\u7684\u5173\u6ce8\uff01\u540e\u7eed\u6709\u7cbe\u5f69\u5185\u5bb9\u4f1a\u7b2c\u4e00\u65f6\u95f4\u53d1\u7ed9\u60a8\uff01\u539f\u521b\u6587\u7ae0\u6295\u7a3f\u8bf7\u53d1\u9001\u81f3532009913@qq.com\u90ae\u7bb1\u3002\u5546\u52a1\u5408\u4f5c\u4e5f\u53ef\u6dfb\u52a0\u4f5c\u8005\u5fae\u4fe1\u8fdb\u884c\u8054\u7cfb\uff01<\/p>\u672c\u6587\u539f\u6587\u51fa\u5904\uff1a\u4e1a\u4f59\u8349<\/a>\uff1a » jQuery\u9009\u62e9\u5668\u4f7f\u7528\u6559\u7a0b<\/a><\/p>","protected":false},"excerpt":{"rendered":"jQuery \u7684\u9009\u62e9\u5668\u53ef\u8c13\u4e4b\u5f3a\u5927\u65e0\u6bd4\uff0c\u8fd9\u91cc\u7b80\u5355\u5730\u603b\u7ed3\u4e00\u4e0b\u5e38\u7528\u7684\u5143\u7d20\u67e5\u627e\u65b9\u6cd5 $("#my […]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4],"tags":[49,776,778,775,777,779],"class_list":["post-1050","post","type-post","status-publish","format-standard","hentry","category-html5","tag-jquery","tag-776","tag-778","tag-775","tag-777","tag-779"],"_links":{"self":[{"href":"https:\/\/www.xttblog.com\/index.php?rest_route=\/wp\/v2\/posts\/1050","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.xttblog.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.xttblog.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.xttblog.com\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.xttblog.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1050"}],"version-history":[{"count":1,"href":"https:\/\/www.xttblog.com\/index.php?rest_route=\/wp\/v2\/posts\/1050\/revisions"}],"predecessor-version":[{"id":1051,"href":"https:\/\/www.xttblog.com\/index.php?rest_route=\/wp\/v2\/posts\/1050\/revisions\/1051"}],"wp:attachment":[{"href":"https:\/\/www.xttblog.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1050"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.xttblog.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1050"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.xttblog.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1050"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
\n\t\u5b50\u5143\u7d20\u8fc7\u6ee4\u9009\u62e9\u5668
\n<\/h2>\n\r\n$("ul li:nth-child(2)"),$("ul li:nth-child(odd)"),$("ul li:nth-child(3n + 1)") \r\n$("div span:first-child") \u8fd4\u56de\u6240\u6709\u7684div\u5143\u7d20\u7684\u7b2c\u4e00\u4e2a\u5b50\u8282\u70b9\u7684\u6570\u7ec4 \r\n$("div span:last-child") \u8fd4\u56de\u6240\u6709\u7684div\u5143\u7d20\u7684\u6700\u540e\u4e00\u4e2a\u8282\u70b9\u7684\u6570\u7ec4 \r\n$("div button:only-child") \u8fd4\u56de\u6240\u6709\u7684div\u4e2d\u53ea\u6709\u552f\u4e00\u4e00\u4e2a\u5b50\u8282\u70b9\u7684\u6240\u6709\u5b50\u8282\u70b9\u7684\u6570\u7ec4 <\/pre>\n\n\t\u8868\u5355\u5143\u7d20\u9009\u62e9\u5668
\n<\/h2>\n\r\n$(":input") \u9009\u62e9\u6240\u6709\u7684\u8868\u5355\u8f93\u5165\u5143\u7d20\uff0c\u5305\u62ecinput, textarea, select \u548c button \r\n$(":text") \u9009\u62e9\u6240\u6709\u7684text input\u5143\u7d20 \r\n$(":password") \u9009\u62e9\u6240\u6709\u7684password input\u5143\u7d20 \r\n$(":radio") \u9009\u62e9\u6240\u6709\u7684radio input\u5143\u7d20 \r\n$(":checkbox") \u9009\u62e9\u6240\u6709\u7684checkbox input\u5143\u7d20 \r\n$(":submit") \u9009\u62e9\u6240\u6709\u7684submit input\u5143\u7d20 \r\n$(":image") \u9009\u62e9\u6240\u6709\u7684image input\u5143\u7d20 \r\n$(":reset") \u9009\u62e9\u6240\u6709\u7684reset input\u5143\u7d20 \r\n$(":button") \u9009\u62e9\u6240\u6709\u7684button input\u5143\u7d20 \r\n$(":file") \u9009\u62e9\u6240\u6709\u7684file input\u5143\u7d20 \r\n$(":hidden") \u9009\u62e9\u6240\u6709\u7c7b\u578b\u4e3ahidden\u7684input\u5143\u7d20\u6216\u8868\u5355\u7684\u9690\u85cf\u57df <\/pre>\n\n\t\u8868\u5355\u5143\u7d20\u8fc7\u6ee4\u9009\u62e9\u5668
\n<\/h2>\n\r\n$(":enabled") \u9009\u62e9\u6240\u6709\u7684\u53ef\u64cd\u4f5c\u7684\u8868\u5355\u5143\u7d20 \r\n$(":disabled") \u9009\u62e9\u6240\u6709\u7684\u4e0d\u53ef\u64cd\u4f5c\u7684\u8868\u5355\u5143\u7d20 \r\n$(":checked") \u9009\u62e9\u6240\u6709\u7684\u88abchecked\u7684\u8868\u5355\u5143\u7d20 \r\n$("select option:selected") \u9009\u62e9\u6240\u6709\u7684select \u7684\u5b50\u5143\u7d20\u4e2d\u88abselected\u7684\u5143\u7d20 \r\n\u9009\u53d6\u4e00\u4e2a name \u4e3a”S_03_22″\u7684input text\u6846\u7684\u4e0a\u4e00\u4e2atd\u7684text\u503c\r\n$(”input[@ name =S_03_22]“).parent().prev().text() \r\n\u540d\u5b57\u4ee5”S_”\u5f00\u59cb\uff0c\u5e76\u4e14\u4e0d\u662f\u4ee5”_R”\u7ed3\u5c3e\u7684\r\n$(”input[@ name ^='S_']“).not(”[@ name $='_R']“) \r\n\u4e00\u4e2a\u540d\u4e3a radio_01\u7684radio\u6240\u9009\u7684\u503c\r\n$(”input[@ name =radio_01][@checked]“).val(); \r\n$("A B") \u67e5\u627eA\u5143\u7d20\u4e0b\u9762\u7684\u6240\u6709\u5b50\u8282\u70b9\uff0c\u5305\u62ec\u975e\u76f4\u63a5\u5b50\u8282\u70b9\r\n$("A>B") \u67e5\u627eA\u5143\u7d20\u4e0b\u9762\u7684\u76f4\u63a5\u5b50\u8282\u70b9\r\n$("A+B") \u67e5\u627eA\u5143\u7d20\u540e\u9762\u7684\u5144\u5f1f\u8282\u70b9\uff0c\u5305\u62ec\u975e\u76f4\u63a5\u5b50\u8282\u70b9\r\n$("A~B") \u67e5\u627eA\u5143\u7d20\u540e\u9762\u7684\u5144\u5f1f\u8282\u70b9\uff0c\u4e0d\u5305\u62ec\u975e\u76f4\u63a5\u5b50\u8282\u70b9 \r\n$("A B") \u67e5\u627eA\u5143\u7d20\u4e0b\u9762\u7684\u6240\u6709\u5b50\u8282\u70b9\uff0c\u5305\u62ec\u975e\u76f4\u63a5\u5b50\u8282\u70b9<\/pre>\n\n\t\u4f8b\u5b50\uff1a\u627e\u5230\u8868\u5355\u4e2d\u6240\u6709\u7684 input \u5143\u7d20<\/strong>
\n\t \n<\/p>\n\r\n<form>\r\n<label>Name:<\/label>\r\n<input name="name" \/>\r\n<fieldset>\r\n <label>Newsletter:<\/label>\r\n <input name="newsletter" \/>\r\n<\/fieldset>\r\n<\/form>\r\n<input name="none" \/> \r\n$("form input") \r\n\u7ed3\u679c: \r\n[ , ]<\/pre>\n\n\t$("A>B") \u67e5\u627eA\u5143\u7d20\u4e0b\u9762\u7684\u76f4\u63a5\u5b50\u8282\u70b9
\n\t\u4f8b\u5b50\uff1a\u5339\u914d\u8868\u5355\u4e2d\u6240\u6709\u7684\u5b50\u7ea7input\u5143\u7d20\u3002<\/strong> \n<\/p>\n\r\n<form>\r\n<label>Name:<\/label>\r\n<input name="name" \/>\r\n<fieldset>\r\n <label>Newsletter:<\/label>\r\n <input name="newsletter" \/>\r\n<\/fieldset>\r\n<\/form>\r\n<input name="none" \/> \r\n$("form > input") \r\n\u7ed3\u679c: \r\n[ ] <\/pre>\n\n\t$("A+B") \u67e5\u627eA\u5143\u7d20\u540e\u9762\u7684\u5144\u5f1f\u8282\u70b9\uff0c\u5305\u62ec\u975e\u76f4\u63a5\u5b50\u8282\u70b9
\n\t\u4f8b\u5b50\uff1a\u5339\u914d\u6240\u6709\u8ddf\u5728 label \u540e\u9762\u7684 input \u5143\u7d20<\/strong> \n<\/p>\n\r\n<form>\r\n<label>Name:<\/label>\r\n<input name="name" \/>\r\n<fieldset>\r\n <label>Newsletter:<\/label>\r\n <input name="newsletter" \/>\r\n<\/fieldset>\r\n<\/form>\r\n<input name="none" \/> \r\n$("label + input") \r\n\u7ed3\u679c: \r\n[ , ]<\/pre>\n\n\t$("A~B") \u67e5\u627eA\u5143\u7d20\u540e\u9762\u7684\u5144\u5f1f\u8282\u70b9\uff0c\u4e0d\u5305\u62ec\u975e\u76f4\u63a5\u5b50\u8282\u70b9
\n\t\u4f8b\u5b50\uff1a\u627e\u5230\u6240\u6709\u4e0e\u8868\u5355\u540c\u8f88\u7684 input \u5143\u7d20<\/strong> \n<\/p>\n\r\n<form>\r\n<label>Name:<\/label>\r\n<input name="name" \/>\r\n<fieldset>\r\n <label>Newsletter:<\/label>\r\n <input name="newsletter" \/>\r\n<\/fieldset>\r\n<\/form>\r\n<input name="none" \/> \r\n$("form ~ input") \r\n\u7ed3\u679c: \r\n[ ] \r\n<\/pre>\n<\/p>
\u6700\u540e\uff0c\u6b22\u8fce\u5173\u6ce8\u6211\u7684\u4e2a\u4eba\u5fae\u4fe1\u516c\u4f17\u53f7\uff1a\u4e1a\u4f59\u8349\uff08yyucao\uff09\uff01\u53ef\u52a0\u4f5c\u8005\u5fae\u4fe1\u53f7\uff1axttblog2<\/font>\u3002\u5907\u6ce8\uff1a\u201c1\u201d\uff0c\u6dfb\u52a0\u535a\u4e3b\u5fae\u4fe1\u62c9\u4f60\u8fdb\u5fae\u4fe1\u7fa4\u3002\u5907\u6ce8\u9519\u8bef\u4e0d\u4f1a\u540c\u610f\u597d\u53cb\u7533\u8bf7\u3002<\/b>\u518d\u6b21\u611f\u8c22\u60a8\u7684\u5173\u6ce8\uff01\u540e\u7eed\u6709\u7cbe\u5f69\u5185\u5bb9\u4f1a\u7b2c\u4e00\u65f6\u95f4\u53d1\u7ed9\u60a8\uff01\u539f\u521b\u6587\u7ae0\u6295\u7a3f\u8bf7\u53d1\u9001\u81f3532009913@qq.com\u90ae\u7bb1\u3002\u5546\u52a1\u5408\u4f5c\u4e5f\u53ef\u6dfb\u52a0\u4f5c\u8005\u5fae\u4fe1\u8fdb\u884c\u8054\u7cfb\uff01<\/p>\u672c\u6587\u539f\u6587\u51fa\u5904\uff1a\u4e1a\u4f59\u8349<\/a>\uff1a » jQuery\u9009\u62e9\u5668\u4f7f\u7528\u6559\u7a0b<\/a><\/p>","protected":false},"excerpt":{"rendered":"jQuery \u7684\u9009\u62e9\u5668\u53ef\u8c13\u4e4b\u5f3a\u5927\u65e0\u6bd4\uff0c\u8fd9\u91cc\u7b80\u5355\u5730\u603b\u7ed3\u4e00\u4e0b\u5e38\u7528\u7684\u5143\u7d20\u67e5\u627e\u65b9\u6cd5 $("#my […]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4],"tags":[49,776,778,775,777,779],"class_list":["post-1050","post","type-post","status-publish","format-standard","hentry","category-html5","tag-jquery","tag-776","tag-778","tag-775","tag-777","tag-779"],"_links":{"self":[{"href":"https:\/\/www.xttblog.com\/index.php?rest_route=\/wp\/v2\/posts\/1050","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.xttblog.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.xttblog.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.xttblog.com\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.xttblog.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1050"}],"version-history":[{"count":1,"href":"https:\/\/www.xttblog.com\/index.php?rest_route=\/wp\/v2\/posts\/1050\/revisions"}],"predecessor-version":[{"id":1051,"href":"https:\/\/www.xttblog.com\/index.php?rest_route=\/wp\/v2\/posts\/1050\/revisions\/1051"}],"wp:attachment":[{"href":"https:\/\/www.xttblog.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1050"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.xttblog.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1050"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.xttblog.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1050"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
\n\t\u8868\u5355\u5143\u7d20\u9009\u62e9\u5668
\n<\/h2>\n\r\n$(":input") \u9009\u62e9\u6240\u6709\u7684\u8868\u5355\u8f93\u5165\u5143\u7d20\uff0c\u5305\u62ecinput, textarea, select \u548c button \r\n$(":text") \u9009\u62e9\u6240\u6709\u7684text input\u5143\u7d20 \r\n$(":password") \u9009\u62e9\u6240\u6709\u7684password input\u5143\u7d20 \r\n$(":radio") \u9009\u62e9\u6240\u6709\u7684radio input\u5143\u7d20 \r\n$(":checkbox") \u9009\u62e9\u6240\u6709\u7684checkbox input\u5143\u7d20 \r\n$(":submit") \u9009\u62e9\u6240\u6709\u7684submit input\u5143\u7d20 \r\n$(":image") \u9009\u62e9\u6240\u6709\u7684image input\u5143\u7d20 \r\n$(":reset") \u9009\u62e9\u6240\u6709\u7684reset input\u5143\u7d20 \r\n$(":button") \u9009\u62e9\u6240\u6709\u7684button input\u5143\u7d20 \r\n$(":file") \u9009\u62e9\u6240\u6709\u7684file input\u5143\u7d20 \r\n$(":hidden") \u9009\u62e9\u6240\u6709\u7c7b\u578b\u4e3ahidden\u7684input\u5143\u7d20\u6216\u8868\u5355\u7684\u9690\u85cf\u57df <\/pre>\n\n\t\u8868\u5355\u5143\u7d20\u8fc7\u6ee4\u9009\u62e9\u5668
\n<\/h2>\n\r\n$(":enabled") \u9009\u62e9\u6240\u6709\u7684\u53ef\u64cd\u4f5c\u7684\u8868\u5355\u5143\u7d20 \r\n$(":disabled") \u9009\u62e9\u6240\u6709\u7684\u4e0d\u53ef\u64cd\u4f5c\u7684\u8868\u5355\u5143\u7d20 \r\n$(":checked") \u9009\u62e9\u6240\u6709\u7684\u88abchecked\u7684\u8868\u5355\u5143\u7d20 \r\n$("select option:selected") \u9009\u62e9\u6240\u6709\u7684select \u7684\u5b50\u5143\u7d20\u4e2d\u88abselected\u7684\u5143\u7d20 \r\n\u9009\u53d6\u4e00\u4e2a name \u4e3a”S_03_22″\u7684input text\u6846\u7684\u4e0a\u4e00\u4e2atd\u7684text\u503c\r\n$(”input[@ name =S_03_22]“).parent().prev().text() \r\n\u540d\u5b57\u4ee5”S_”\u5f00\u59cb\uff0c\u5e76\u4e14\u4e0d\u662f\u4ee5”_R”\u7ed3\u5c3e\u7684\r\n$(”input[@ name ^='S_']“).not(”[@ name $='_R']“) \r\n\u4e00\u4e2a\u540d\u4e3a radio_01\u7684radio\u6240\u9009\u7684\u503c\r\n$(”input[@ name =radio_01][@checked]“).val(); \r\n$("A B") \u67e5\u627eA\u5143\u7d20\u4e0b\u9762\u7684\u6240\u6709\u5b50\u8282\u70b9\uff0c\u5305\u62ec\u975e\u76f4\u63a5\u5b50\u8282\u70b9\r\n$("A>B") \u67e5\u627eA\u5143\u7d20\u4e0b\u9762\u7684\u76f4\u63a5\u5b50\u8282\u70b9\r\n$("A+B") \u67e5\u627eA\u5143\u7d20\u540e\u9762\u7684\u5144\u5f1f\u8282\u70b9\uff0c\u5305\u62ec\u975e\u76f4\u63a5\u5b50\u8282\u70b9\r\n$("A~B") \u67e5\u627eA\u5143\u7d20\u540e\u9762\u7684\u5144\u5f1f\u8282\u70b9\uff0c\u4e0d\u5305\u62ec\u975e\u76f4\u63a5\u5b50\u8282\u70b9 \r\n$("A B") \u67e5\u627eA\u5143\u7d20\u4e0b\u9762\u7684\u6240\u6709\u5b50\u8282\u70b9\uff0c\u5305\u62ec\u975e\u76f4\u63a5\u5b50\u8282\u70b9<\/pre>\n\n\t\u4f8b\u5b50\uff1a\u627e\u5230\u8868\u5355\u4e2d\u6240\u6709\u7684 input \u5143\u7d20<\/strong>
\n\t \n<\/p>\n\r\n<form>\r\n<label>Name:<\/label>\r\n<input name="name" \/>\r\n<fieldset>\r\n <label>Newsletter:<\/label>\r\n <input name="newsletter" \/>\r\n<\/fieldset>\r\n<\/form>\r\n<input name="none" \/> \r\n$("form input") \r\n\u7ed3\u679c: \r\n[ , ]<\/pre>\n\n\t$("A>B") \u67e5\u627eA\u5143\u7d20\u4e0b\u9762\u7684\u76f4\u63a5\u5b50\u8282\u70b9
\n\t\u4f8b\u5b50\uff1a\u5339\u914d\u8868\u5355\u4e2d\u6240\u6709\u7684\u5b50\u7ea7input\u5143\u7d20\u3002<\/strong> \n<\/p>\n\r\n<form>\r\n<label>Name:<\/label>\r\n<input name="name" \/>\r\n<fieldset>\r\n <label>Newsletter:<\/label>\r\n <input name="newsletter" \/>\r\n<\/fieldset>\r\n<\/form>\r\n<input name="none" \/> \r\n$("form > input") \r\n\u7ed3\u679c: \r\n[ ] <\/pre>\n\n\t$("A+B") \u67e5\u627eA\u5143\u7d20\u540e\u9762\u7684\u5144\u5f1f\u8282\u70b9\uff0c\u5305\u62ec\u975e\u76f4\u63a5\u5b50\u8282\u70b9
\n\t\u4f8b\u5b50\uff1a\u5339\u914d\u6240\u6709\u8ddf\u5728 label \u540e\u9762\u7684 input \u5143\u7d20<\/strong> \n<\/p>\n\r\n<form>\r\n<label>Name:<\/label>\r\n<input name="name" \/>\r\n<fieldset>\r\n <label>Newsletter:<\/label>\r\n <input name="newsletter" \/>\r\n<\/fieldset>\r\n<\/form>\r\n<input name="none" \/> \r\n$("label + input") \r\n\u7ed3\u679c: \r\n[ , ]<\/pre>\n\n\t$("A~B") \u67e5\u627eA\u5143\u7d20\u540e\u9762\u7684\u5144\u5f1f\u8282\u70b9\uff0c\u4e0d\u5305\u62ec\u975e\u76f4\u63a5\u5b50\u8282\u70b9
\n\t\u4f8b\u5b50\uff1a\u627e\u5230\u6240\u6709\u4e0e\u8868\u5355\u540c\u8f88\u7684 input \u5143\u7d20<\/strong> \n<\/p>\n\r\n<form>\r\n<label>Name:<\/label>\r\n<input name="name" \/>\r\n<fieldset>\r\n <label>Newsletter:<\/label>\r\n <input name="newsletter" \/>\r\n<\/fieldset>\r\n<\/form>\r\n<input name="none" \/> \r\n$("form ~ input") \r\n\u7ed3\u679c: \r\n[ ] \r\n<\/pre>\n<\/p>
\u6700\u540e\uff0c\u6b22\u8fce\u5173\u6ce8\u6211\u7684\u4e2a\u4eba\u5fae\u4fe1\u516c\u4f17\u53f7\uff1a\u4e1a\u4f59\u8349\uff08yyucao\uff09\uff01\u53ef\u52a0\u4f5c\u8005\u5fae\u4fe1\u53f7\uff1axttblog2<\/font>\u3002\u5907\u6ce8\uff1a\u201c1\u201d\uff0c\u6dfb\u52a0\u535a\u4e3b\u5fae\u4fe1\u62c9\u4f60\u8fdb\u5fae\u4fe1\u7fa4\u3002\u5907\u6ce8\u9519\u8bef\u4e0d\u4f1a\u540c\u610f\u597d\u53cb\u7533\u8bf7\u3002<\/b>\u518d\u6b21\u611f\u8c22\u60a8\u7684\u5173\u6ce8\uff01\u540e\u7eed\u6709\u7cbe\u5f69\u5185\u5bb9\u4f1a\u7b2c\u4e00\u65f6\u95f4\u53d1\u7ed9\u60a8\uff01\u539f\u521b\u6587\u7ae0\u6295\u7a3f\u8bf7\u53d1\u9001\u81f3532009913@qq.com\u90ae\u7bb1\u3002\u5546\u52a1\u5408\u4f5c\u4e5f\u53ef\u6dfb\u52a0\u4f5c\u8005\u5fae\u4fe1\u8fdb\u884c\u8054\u7cfb\uff01<\/p>\u672c\u6587\u539f\u6587\u51fa\u5904\uff1a\u4e1a\u4f59\u8349<\/a>\uff1a » jQuery\u9009\u62e9\u5668\u4f7f\u7528\u6559\u7a0b<\/a><\/p>","protected":false},"excerpt":{"rendered":"jQuery \u7684\u9009\u62e9\u5668\u53ef\u8c13\u4e4b\u5f3a\u5927\u65e0\u6bd4\uff0c\u8fd9\u91cc\u7b80\u5355\u5730\u603b\u7ed3\u4e00\u4e0b\u5e38\u7528\u7684\u5143\u7d20\u67e5\u627e\u65b9\u6cd5 $("#my […]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4],"tags":[49,776,778,775,777,779],"class_list":["post-1050","post","type-post","status-publish","format-standard","hentry","category-html5","tag-jquery","tag-776","tag-778","tag-775","tag-777","tag-779"],"_links":{"self":[{"href":"https:\/\/www.xttblog.com\/index.php?rest_route=\/wp\/v2\/posts\/1050","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.xttblog.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.xttblog.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.xttblog.com\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.xttblog.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1050"}],"version-history":[{"count":1,"href":"https:\/\/www.xttblog.com\/index.php?rest_route=\/wp\/v2\/posts\/1050\/revisions"}],"predecessor-version":[{"id":1051,"href":"https:\/\/www.xttblog.com\/index.php?rest_route=\/wp\/v2\/posts\/1050\/revisions\/1051"}],"wp:attachment":[{"href":"https:\/\/www.xttblog.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1050"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.xttblog.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1050"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.xttblog.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1050"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
\n\t\u8868\u5355\u5143\u7d20\u8fc7\u6ee4\u9009\u62e9\u5668
\n<\/h2>\n\r\n$(":enabled") \u9009\u62e9\u6240\u6709\u7684\u53ef\u64cd\u4f5c\u7684\u8868\u5355\u5143\u7d20 \r\n$(":disabled") \u9009\u62e9\u6240\u6709\u7684\u4e0d\u53ef\u64cd\u4f5c\u7684\u8868\u5355\u5143\u7d20 \r\n$(":checked") \u9009\u62e9\u6240\u6709\u7684\u88abchecked\u7684\u8868\u5355\u5143\u7d20 \r\n$("select option:selected") \u9009\u62e9\u6240\u6709\u7684select \u7684\u5b50\u5143\u7d20\u4e2d\u88abselected\u7684\u5143\u7d20 \r\n\u9009\u53d6\u4e00\u4e2a name \u4e3a”S_03_22″\u7684input text\u6846\u7684\u4e0a\u4e00\u4e2atd\u7684text\u503c\r\n$(”input[@ name =S_03_22]“).parent().prev().text() \r\n\u540d\u5b57\u4ee5”S_”\u5f00\u59cb\uff0c\u5e76\u4e14\u4e0d\u662f\u4ee5”_R”\u7ed3\u5c3e\u7684\r\n$(”input[@ name ^='S_']“).not(”[@ name $='_R']“) \r\n\u4e00\u4e2a\u540d\u4e3a radio_01\u7684radio\u6240\u9009\u7684\u503c\r\n$(”input[@ name =radio_01][@checked]“).val(); \r\n$("A B") \u67e5\u627eA\u5143\u7d20\u4e0b\u9762\u7684\u6240\u6709\u5b50\u8282\u70b9\uff0c\u5305\u62ec\u975e\u76f4\u63a5\u5b50\u8282\u70b9\r\n$("A>B") \u67e5\u627eA\u5143\u7d20\u4e0b\u9762\u7684\u76f4\u63a5\u5b50\u8282\u70b9\r\n$("A+B") \u67e5\u627eA\u5143\u7d20\u540e\u9762\u7684\u5144\u5f1f\u8282\u70b9\uff0c\u5305\u62ec\u975e\u76f4\u63a5\u5b50\u8282\u70b9\r\n$("A~B") \u67e5\u627eA\u5143\u7d20\u540e\u9762\u7684\u5144\u5f1f\u8282\u70b9\uff0c\u4e0d\u5305\u62ec\u975e\u76f4\u63a5\u5b50\u8282\u70b9 \r\n$("A B") \u67e5\u627eA\u5143\u7d20\u4e0b\u9762\u7684\u6240\u6709\u5b50\u8282\u70b9\uff0c\u5305\u62ec\u975e\u76f4\u63a5\u5b50\u8282\u70b9<\/pre>\n\n\t\u4f8b\u5b50\uff1a\u627e\u5230\u8868\u5355\u4e2d\u6240\u6709\u7684 input \u5143\u7d20<\/strong>
\n\t \n<\/p>\n\r\n<form>\r\n<label>Name:<\/label>\r\n<input name="name" \/>\r\n<fieldset>\r\n <label>Newsletter:<\/label>\r\n <input name="newsletter" \/>\r\n<\/fieldset>\r\n<\/form>\r\n<input name="none" \/> \r\n$("form input") \r\n\u7ed3\u679c: \r\n[ , ]<\/pre>\n\n\t$("A>B") \u67e5\u627eA\u5143\u7d20\u4e0b\u9762\u7684\u76f4\u63a5\u5b50\u8282\u70b9
\n\t\u4f8b\u5b50\uff1a\u5339\u914d\u8868\u5355\u4e2d\u6240\u6709\u7684\u5b50\u7ea7input\u5143\u7d20\u3002<\/strong> \n<\/p>\n\r\n<form>\r\n<label>Name:<\/label>\r\n<input name="name" \/>\r\n<fieldset>\r\n <label>Newsletter:<\/label>\r\n <input name="newsletter" \/>\r\n<\/fieldset>\r\n<\/form>\r\n<input name="none" \/> \r\n$("form > input") \r\n\u7ed3\u679c: \r\n[ ] <\/pre>\n\n\t$("A+B") \u67e5\u627eA\u5143\u7d20\u540e\u9762\u7684\u5144\u5f1f\u8282\u70b9\uff0c\u5305\u62ec\u975e\u76f4\u63a5\u5b50\u8282\u70b9
\n\t\u4f8b\u5b50\uff1a\u5339\u914d\u6240\u6709\u8ddf\u5728 label \u540e\u9762\u7684 input \u5143\u7d20<\/strong> \n<\/p>\n\r\n<form>\r\n<label>Name:<\/label>\r\n<input name="name" \/>\r\n<fieldset>\r\n <label>Newsletter:<\/label>\r\n <input name="newsletter" \/>\r\n<\/fieldset>\r\n<\/form>\r\n<input name="none" \/> \r\n$("label + input") \r\n\u7ed3\u679c: \r\n[ , ]<\/pre>\n\n\t$("A~B") \u67e5\u627eA\u5143\u7d20\u540e\u9762\u7684\u5144\u5f1f\u8282\u70b9\uff0c\u4e0d\u5305\u62ec\u975e\u76f4\u63a5\u5b50\u8282\u70b9
\n\t\u4f8b\u5b50\uff1a\u627e\u5230\u6240\u6709\u4e0e\u8868\u5355\u540c\u8f88\u7684 input \u5143\u7d20<\/strong> \n<\/p>\n\r\n<form>\r\n<label>Name:<\/label>\r\n<input name="name" \/>\r\n<fieldset>\r\n <label>Newsletter:<\/label>\r\n <input name="newsletter" \/>\r\n<\/fieldset>\r\n<\/form>\r\n<input name="none" \/> \r\n$("form ~ input") \r\n\u7ed3\u679c: \r\n[ ] \r\n<\/pre>\n<\/p>
\u6700\u540e\uff0c\u6b22\u8fce\u5173\u6ce8\u6211\u7684\u4e2a\u4eba\u5fae\u4fe1\u516c\u4f17\u53f7\uff1a\u4e1a\u4f59\u8349\uff08yyucao\uff09\uff01\u53ef\u52a0\u4f5c\u8005\u5fae\u4fe1\u53f7\uff1axttblog2<\/font>\u3002\u5907\u6ce8\uff1a\u201c1\u201d\uff0c\u6dfb\u52a0\u535a\u4e3b\u5fae\u4fe1\u62c9\u4f60\u8fdb\u5fae\u4fe1\u7fa4\u3002\u5907\u6ce8\u9519\u8bef\u4e0d\u4f1a\u540c\u610f\u597d\u53cb\u7533\u8bf7\u3002<\/b>\u518d\u6b21\u611f\u8c22\u60a8\u7684\u5173\u6ce8\uff01\u540e\u7eed\u6709\u7cbe\u5f69\u5185\u5bb9\u4f1a\u7b2c\u4e00\u65f6\u95f4\u53d1\u7ed9\u60a8\uff01\u539f\u521b\u6587\u7ae0\u6295\u7a3f\u8bf7\u53d1\u9001\u81f3532009913@qq.com\u90ae\u7bb1\u3002\u5546\u52a1\u5408\u4f5c\u4e5f\u53ef\u6dfb\u52a0\u4f5c\u8005\u5fae\u4fe1\u8fdb\u884c\u8054\u7cfb\uff01<\/p>\u672c\u6587\u539f\u6587\u51fa\u5904\uff1a\u4e1a\u4f59\u8349<\/a>\uff1a » jQuery\u9009\u62e9\u5668\u4f7f\u7528\u6559\u7a0b<\/a><\/p>","protected":false},"excerpt":{"rendered":"jQuery \u7684\u9009\u62e9\u5668\u53ef\u8c13\u4e4b\u5f3a\u5927\u65e0\u6bd4\uff0c\u8fd9\u91cc\u7b80\u5355\u5730\u603b\u7ed3\u4e00\u4e0b\u5e38\u7528\u7684\u5143\u7d20\u67e5\u627e\u65b9\u6cd5 $("#my […]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4],"tags":[49,776,778,775,777,779],"class_list":["post-1050","post","type-post","status-publish","format-standard","hentry","category-html5","tag-jquery","tag-776","tag-778","tag-775","tag-777","tag-779"],"_links":{"self":[{"href":"https:\/\/www.xttblog.com\/index.php?rest_route=\/wp\/v2\/posts\/1050","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.xttblog.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.xttblog.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.xttblog.com\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.xttblog.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1050"}],"version-history":[{"count":1,"href":"https:\/\/www.xttblog.com\/index.php?rest_route=\/wp\/v2\/posts\/1050\/revisions"}],"predecessor-version":[{"id":1051,"href":"https:\/\/www.xttblog.com\/index.php?rest_route=\/wp\/v2\/posts\/1050\/revisions\/1051"}],"wp:attachment":[{"href":"https:\/\/www.xttblog.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1050"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.xttblog.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1050"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.xttblog.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1050"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
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\n\t \n<\/p>\n\r\n<form>\r\n<label>Name:<\/label>\r\n<input name="name" \/>\r\n<fieldset>\r\n <label>Newsletter:<\/label>\r\n <input name="newsletter" \/>\r\n<\/fieldset>\r\n<\/form>\r\n<input name="none" \/> \r\n$("form input") \r\n\u7ed3\u679c: \r\n[ , ]<\/pre>\n
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\n\t\u4f8b\u5b50\uff1a\u5339\u914d\u6240\u6709\u8ddf\u5728 label \u540e\u9762\u7684 input \u5143\u7d20<\/strong> \n<\/p>\n\r\n<form>\r\n<label>Name:<\/label>\r\n<input name="name" \/>\r\n<fieldset>\r\n <label>Newsletter:<\/label>\r\n <input name="newsletter" \/>\r\n<\/fieldset>\r\n<\/form>\r\n<input name="none" \/> \r\n$("label + input") \r\n\u7ed3\u679c: \r\n[ , ]<\/pre>\n
\n\t\u4f8b\u5b50\uff1a\u627e\u5230\u6240\u6709\u4e0e\u8868\u5355\u540c\u8f88\u7684 input \u5143\u7d20<\/strong> \n<\/p>\n\r\n<form>\r\n<label>Name:<\/label>\r\n<input name="name" \/>\r\n<fieldset>\r\n <label>Newsletter:<\/label>\r\n <input name="newsletter" \/>\r\n<\/fieldset>\r\n<\/form>\r\n<input name="none" \/> \r\n$("form ~ input") \r\n\u7ed3\u679c: \r\n[ ] \r\n<\/pre>\n<\/p>