html获取链接上面的参数

$("body").click(function(){
//html获取链接上面的参数
function getQueryString(name){
    var reg = new RegExp("(^|&)"+ name +"=([^&]*)(&|$)");
    var r = window.location.search.substr(1).match(reg);
    if (r!=null) return r[2];else return'';
}
var type = getQueryString('type');
if(type=='1'){
alert(123);
location.replace("文件路径");
}else if(type=='2'){
alert(456);
location.replace("文件路径");
}
getQueryString('name');
});
URL:applyFor.html?userId=1
    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 userId = getQueryVariable("userId");
//system/index.html
var url;
url = window.location.pathname;
url = url.substring(url.lastIndexOf('/') + 1, url.length);
console.log(url)
打印出来就是：index.html