<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>取值</title>
</head>
<body>
<input type="text" id="question" /><button id="btn">查询</button>
<div id="answer"></div>
</body>
</html>
<script type="text/javascript">
//var ss=document.location;
var answer=document.getElementById("answer");
var oBtn=document.getElementById("btn");
var oInput=document.getElementById("question");
var str="http://localhost/?id=123&name=test&psw=aaa";
var r=str.substring(str.indexOf("?")+1);
var arr=r.split("&");
oBtn.onclick=function(){
if(oInput.value.length>0 ){
for(var i=0;i<arr.length;i++){
if(arr[i].indexOf(oInput.value)==0){
answer.innerHTML=arr[i].slice(oInput.value.length+1);
return;
}
}
}
}
</script>
