js获取url参数值

方法一:正则分析法
function getQueryString(name) {
var reg = new RegExp("(^|&)" + name + "=([^&]*)(&|$)", "i");
var r = window.location.search.substr(1).match(reg);
if (r != null) return unescape(r[2]); return null;
}

调用方法:
alert(GetQueryString("参数名1"));alert(GetQueryString("参数名2"));

alert(GetQueryString("参数名3"));

方法二
<Script language="javascript">
function  GetRequest() {
   var  url = location.search; //获取url中"?"符后的字串
   var  theRequest = new  Object();
   if  (url.indexOf("?") != -1) {
      var  str = url.substr(1);
      strs = str.split("&");
      for(var  i = 0; i < strs.length; i ++) {
         theRequest[strs[i].split("=")[0]]=unescape(strs[i].split("=")[1]);
      }
   }
   return  theRequest;
}
</Script>

调用方法:
<Script language="javascript">
var Request = new Object();
Request =
 GetRequest();
var
 参数1,参数2,参数3,参数N;
参数1 = Request['参数1'
];
参数2 = Request['参数2'
];
参数3 = Request['参数3'
];
参数N = Request['参数N'
];
</Script>

 

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