JS 获取网页网址中的 GET 请求

var $_GET = (function(){
    var url = location.search.toString();
    var u = url.split("?", 2);
    if(typeof(u[1]) === "string"){
        u = u[1].split("&");
        var get = {};
        for(var i in u) {
            var j = u[i].split("=");
            get[j[0]] = j[1];
        }
        return get;
    } 
    else 
        return {};

})();

用法

例如现在URL为:

xxx.github.io/xxx.htm?UID=88888

然后可以

var UID = $_GET["UID"];