{"id":2043,"date":"2017-10-13T16:06:22","date_gmt":"2017-10-13T12:18:16","guid":{"rendered":"http:\/\/www.xttblog.com\/?p=2043"},"modified":"2017-10-13T16:07:43","modified_gmt":"2017-10-13T08:07:43","slug":"%e9%9d%a0%e6%8e%92%e7%85%a7%e7%89%87%e5%92%8c%e6%8b%8d%e8%a7%86%e9%a2%91%e5%81%9a%e5%88%b0%e6%9c%88%e5%85%a510%e4%b8%87-16","status":"publish","type":"post","link":"https:\/\/www.xttblog.com\/?p=2043","title":{"rendered":"JavaScript\u5b9e\u73b0\u4e8c\u5206\u67e5\u627e\u7b97\u6cd5"},"content":{"rendered":"

\n\t\u4e00\u76f4\u4ee5\u6765\u5927\u5bb6\u90fd\u8ba4\u4e3a JavaScript<\/a> \u66f4\u504f\u5411\u4e8e\u524d\u7aef\uff0c\u5bfc\u81f4\u4e86\u7f51\u4e0a\u5173\u4e8e JavaScript<\/a> \u7b97\u6cd5<\/a>\u65b9\u9762\u7684\u5185\u5bb9\u4e0d\u662f\u5f88\u591a\u3002\u56e0\u6b64\u672c\u6587\u4fbf\u501f\u52a9 JavaScript<\/a> \u6765\u5b9e\u73b0\u6570\u7ec4\u7684\u4e8c\u5206\u67e5\u627e\u7b97\u6cd5<\/a>\u3002\n<\/p>\n

\n\t\u4e8c\u5206\u67e5\u627e<\/a>\u53c8\u79f0\u6298\u534a\u67e5\u627e<\/a>\uff0c\u4f18\u70b9\u662f\u6bd4\u8f83\u6b21\u6570\u5c11\uff0c\u67e5\u627e\u901f\u5ea6\u5feb\uff0c\u5e73\u5747\u6027\u80fd\u597d\uff1b\u5176\u7f3a\u70b9\u662f\u8981\u6c42\u5f85\u67e5\u8868\u4e3a\u6709\u5e8f\u8868\uff0c\u4e14\u63d2\u5165\u5220\u9664\u56f0\u96be\u3002\u56e0\u6b64\uff0c\u6298\u534a\u67e5\u627e<\/a>\u65b9\u6cd5\u9002\u7528\u4e8e\u4e0d\u7ecf\u5e38\u53d8\u52a8\u800c\u67e5\u627e\u9891\u7e41\u7684\u6709\u5e8f\u5217\u8868\u3002\n<\/p>\n

\n\t\u4e8c\u5206\u67e5\u627e<\/a>\u662f\u4e00\u4e2a\u57fa\u7840\u7684\u7b97\u6cd5<\/a>\uff0c\u4e5f\u662f\u9762\u8bd5\u4e2d\u5e38\u8003\u7684\u4e00\u4e2a\u77e5\u8bc6\u70b9\u3002\u4e8c\u5206\u67e5\u627e\u5c31\u662f\u5c06\u67e5\u627e\u7684\u952e\u548c\u5b50\u6570\u7ec4\u7684\u4e2d\u95f4\u952e\u4f5c\u6bd4\u8f83\uff0c\u5982\u679c\u88ab\u67e5\u627e\u7684\u952e\u5c0f\u4e8e\u4e2d\u95f4\u952e\uff0c\u5c31\u5728\u5de6\u5b50\u6570\u7ec4\u7ee7\u7eed\u67e5\u627e\uff1b\u5982\u679c\u5927\u4e8e\u4e2d\u95f4\u952e\uff0c\u5c31\u5728\u53f3\u5b50\u6570\u7ec4\u4e2d\u67e5\u627e\uff0c\u5426\u5219\u4e2d\u95f4\u952e\u5c31\u662f\u8981\u627e\u7684\u5143\u7d20\u3002\n<\/p>\n

\n\t\u57fa\u672c\u601d\u8def
\n<\/h2>\n

\n\t\u6570\u7ec4\u4e2d\u95f4\u4f4d\u7f6e\u5bf9\u5e94\u7684\u503c\u4e0e\u9700\u8981\u67e5\u627e\u7684\u503c\u6bd4\u8f83\uff0c\u5982\u679c\u4e24\u8005\u76f8\u7b49\uff0c\u5219\u67e5\u627e\u6210\u529f\uff1b\u5426\u5219\u5229\u7528\u4e2d\u95f4\u4f4d\u7f6e\u8bb0\u5f55\u5c06\u6570\u7ec4\u5206\u6210\u524d\u3001\u540e\u4e24\u4e2a\u5b50\u6570\u7ec4\uff0c\u5982\u679c\u4e2d\u95f4\u4f4d\u7f6e\u8bb0\u5f55\u7684\u5173\u952e\u5b57\u5927\u4e8e\u67e5\u627e\u5173\u952e\u5b57\uff0c\u5219\u8fdb\u4e00\u6b65\u67e5\u627e\u524d\u4e00\u5b50\u6570\u7ec4\uff0c\u5426\u5219\u8fdb\u4e00\u6b65\u67e5\u627e\u540e\u4e00\u5b50\u6570\u7ec4\uff0c\u7136\u540e\u4f9d\u9012\u5f52\u3002\n<\/p>\n

\n\t\"\u4e8c\u5206\u67e5\u627e\u7b97\u6cd5\"\n<\/p>\n

\n\t\u4e0b\u9762\u662f JavaScript \u5b9e\u73b0\u4e8c\u5206\u67e5\u627e<\/a>\u7b97\u6cd5<\/a>\u7684\u5b9e\u73b0\u4ee3\u7801\uff1a\n<\/p>\n

\r\n\/**\r\n * [binarySearch \u4e8c\u5206\u67e5\u627e]\r\n * @param  {[type]} value      [\u67e5\u627e\u5143\u7d20]\r\n * @param  {[type]} arr        [\u6570\u7ec4]\r\n * @param  {[type]} startIndex [\u5f00\u59cb\u7d22\u5f15]\r\n * @param  {[type]} endIndex   [\u7ed3\u675f\u7d22\u5f15]\r\n * @return {[type]}            [\u8fd4\u56de\u67e5\u627e\u5143\u7d20\u7684\u7d22\u5f15]\r\n *\/\r\nfunction binarySearch(value,arr,startIndex,endIndex) {\r\n\tif(!value|| !(arr instanceof Array)) return;\r\n\t\/\/\u4e1a\u4f59\u8349\uff1awww.xttblog.com\r\n\tvar len        = arr.length,\r\n\t\tstartIndex = typeof startIndex === "number" ? startIndex : 0,\r\n\t\tendIndex   = typeof endIndex   === "number" ? endIndex   : len-1,\r\n\t\tmidIndex   = Math.floor((startIndex + endIndex) \/ 2),\r\n\t\tmidval     = arr[midIndex];\r\n\t\/\/\u4e1a\u4f59\u8349\uff1awww.xttblog.com\r\n\tif(startIndex > endIndex) return ;\r\n\t\/\/\u4e1a\u4f59\u8349\uff1awww.xttblog.com\r\n\tif(midval === value){\r\n\t\treturn midIndex;\r\n\t}else if (midval > value) {\r\n\t\treturn binarySearch(value, arr, startIndex, midIndex - 1);\r\n\t}else {\r\n\t\treturn binarySearch(value, arr, midIndex + 1, endIndex);\r\n\t}\r\n}\r\nconsole.log(binarySearch(3,[1,2,3,4,5,6,7]));\/\/2<\/pre>\n
\n\t\u4ee5\u4e0a\u5c31\u662f\u5173\u4e8e JavaScript<\/a> \u5b9e\u73b0\u4e8c\u5206\u67e5\u627e<\/a>\u7b97\u6cd5<\/a>\u7684\u5b9e\u73b0\u3002<\/p>\n
\"\u4e1a\u4f59\u8349\u516c\u4f17\u53f7\"\/<\/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 » JavaScript\u5b9e\u73b0\u4e8c\u5206\u67e5\u627e\u7b97\u6cd5<\/a><\/p>","protected":false},"excerpt":{"rendered":"
\u4e00\u76f4\u4ee5\u6765\u5927\u5bb6\u90fd\u8ba4\u4e3a JavaScript \u66f4\u504f\u5411\u4e8e\u524d\u7aef\uff0c\u5bfc\u81f4\u4e86\u7f51\u4e0a\u5173\u4e8e JavaScript \u7b97\u6cd5\u65b9\u9762\u7684\u5185\u5bb9\u4e0d […]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4],"tags":[1106,1533,1534,75],"class_list":["post-2043","post","type-post","status-publish","format-standard","hentry","category-html5","tag-javascript","tag-1533","tag-1534","tag-75"],"_links":{"self":[{"href":"https:\/\/www.xttblog.com\/index.php?rest_route=\/wp\/v2\/posts\/2043","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=2043"}],"version-history":[{"count":1,"href":"https:\/\/www.xttblog.com\/index.php?rest_route=\/wp\/v2\/posts\/2043\/revisions"}],"predecessor-version":[{"id":2156,"href":"https:\/\/www.xttblog.com\/index.php?rest_route=\/wp\/v2\/posts\/2043\/revisions\/2156"}],"wp:attachment":[{"href":"https:\/\/www.xttblog.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2043"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.xttblog.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=2043"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.xttblog.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=2043"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}