https://blog.youkuaiyun.com/lf1218zh-cnhttps://blog.youkuaiyun.com/https://blog.youkuaiyun.com/lf1218/article/details/51214392https://blog.youkuaiyun.com/lf1218/article/details/51214392lf1218Fri, 22 Apr 2016 00:51:14 +0800https://blog.youkuaiyun.com/lf1218/article/details/51212635https://blog.youkuaiyun.com/lf1218/article/details/51212635lf1218Thu, 21 Apr 2016 20:25:50 +0800 findVal,说明要查找的数（findVal）在数组的左边，就把该数组二分（即只在左边查找）反之，如果midVal 代码： var arr=[1,4,6,8,9,90,800]; function binarySearch(arr,findVal,leftIndex,right]]>https://blog.youkuaiyun.com/lf1218/article/details/51212355https://blog.youkuaiyun.com/lf1218/article/details/51212355lf1218Thu, 21 Apr 2016 19:49:09 +0800https://blog.youkuaiyun.com/lf1218/article/details/51211495https://blog.youkuaiyun.com/lf1218/article/details/51211495lf1218Thu, 21 Apr 2016 18:46:33 +0800https://blog.youkuaiyun.com/lf1218/article/details/51211273https://blog.youkuaiyun.com/lf1218/article/details/51211273lf1218Thu, 21 Apr 2016 17:43:15 +0800https://blog.youkuaiyun.com/lf1218/article/details/51209073https://blog.youkuaiyun.com/lf1218/article/details/51209073lf1218Thu, 21 Apr 2016 14:56:02 +0800https://blog.youkuaiyun.com/lf1218/article/details/51207958https://blog.youkuaiyun.com/lf1218/article/details/51207958lf1218Thu, 21 Apr 2016 12:49:40 +0800https://blog.youkuaiyun.com/lf1218/article/details/51207915https://blog.youkuaiyun.com/lf1218/article/details/51207915lf1218Thu, 21 Apr 2016 12:36:45 +0800https://blog.youkuaiyun.com/lf1218/article/details/51207887https://blog.youkuaiyun.com/lf1218/article/details/51207887lf1218Thu, 21 Apr 2016 12:30:26 +0800 js: function shuRu(n){ for (i=1;i<=n ;i++ ) { for (j=1;j<=(n-i) ;j++ ) { document.write(' '); } for (j=1;j<=(2*i-1) ]]>https://blog.youkuaiyun.com/lf1218/article/details/51207845https://blog.youkuaiyun.com/lf1218/article/details/51207845lf1218Thu, 21 Apr 2016 12:19:59 +0800https://blog.youkuaiyun.com/lf1218/article/details/51206207https://blog.youkuaiyun.com/lf1218/article/details/51206207lf1218Thu, 21 Apr 2016 09:55:30 +0800https://blog.youkuaiyun.com/lf1218/article/details/51206065https://blog.youkuaiyun.com/lf1218/article/details/51206065lf1218Thu, 21 Apr 2016 09:53:41 +08003){ abc(--num1);//递归 } document.writeln(num1); } abc('5'); 运行结果：3  3  4 运行分析图：]]>https://blog.youkuaiyun.com/lf1218/article/details/51205714https://blog.youkuaiyun.com/lf1218/article/details/51205714lf1218Thu, 21 Apr 2016 09:07:33 +0800https://blog.youkuaiyun.com/lf1218/article/details/51205657https://blog.youkuaiyun.com/lf1218/article/details/51205657lf1218Thu, 21 Apr 2016 09:00:39 +0800https://blog.youkuaiyun.com/lf1218/article/details/51205591https://blog.youkuaiyun.com/lf1218/article/details/51205591lf1218Thu, 21 Apr 2016 08:52:49 +0800https://blog.youkuaiyun.com/lf1218/article/details/51199378https://blog.youkuaiyun.com/lf1218/article/details/51199378lf1218Wed, 20 Apr 2016 11:35:30 +0800https://blog.youkuaiyun.com/lf1218/article/details/51199060https://blog.youkuaiyun.com/lf1218/article/details/51199060lf1218Wed, 20 Apr 2016 11:10:42 +0800https://blog.youkuaiyun.com/lf1218/article/details/51198858https://blog.youkuaiyun.com/lf1218/article/details/51198858lf1218Wed, 20 Apr 2016 10:55:08 +0800>2; Window.alert(a);    //结果是1 原理： 4  二进制：00000000 0000100  右移两位：00 00000000 00001  ---运行结果为1 2)var a=-4>>2; Window.alert(a);    //结果是-1 原理：  -4  原码：1000000]]>https://blog.youkuaiyun.com/lf1218/article/details/51198367https://blog.youkuaiyun.com/lf1218/article/details/51198367lf1218Wed, 20 Apr 2016 10:10:15 +0800https://blog.youkuaiyun.com/lf1218/article/details/51198272https://blog.youkuaiyun.com/lf1218/article/details/51198272lf1218Wed, 20 Apr 2016 10:02:24 +0800