[Switch] Get URL parameter passing method of the JS

Original link: https://www.mk2048.com/blog/blog.php?id=h02j2ihj12jb&title=%5B%E8%BD%AC%5DJS%E8%8E%B7%E5%8F%96URL%E4%BC% A0% E5% 8F% 82% E6% 96% B9% E6% B3% 95

1 function GetQueryString(name) {
2    var reg = new RegExp("(^|&)"   name   "=([^&]*)(&|$)","i");
3    var r = window.location.search.substr(1).match(reg);
4    if (r!=null) return (r[2]); return null;
5 }
6 alert(GetQueryString("参数名1"));
7 alert(GetQueryString("参数名2"));
8 alert(GetQueryString("参数名3"));

 

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