<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<script type="text/javascript" src="http://cdn.bootcss.com/jquery/2.1.4/jquery.min.js"></script>
<title></title>
<script type="text/javascript">
function getQueryVariable(variable)
{
var query = window.location.search.substring(1);
var vars = query.split("&");
for (var i=0;i<vars.length;i++) {
var pair = vars[i].split("=");
if(pair[0] == variable){return pair[1];}
}
return(false);
}
var a = getQueryVariable(‘id‘);
alert(a);
</script>
</head>
<body>
</body>
</html>
原文：https://www.cnblogs.com/ayanboke/p/11512113.html