获取URL中的参数值

//获取url中ID的值
function getParamByName(name, url) {
    var match = RegExp('[?&]' + name + '=([^&]*)').exec(url);
    return match && decodeURIComponent(match[1].replace(/\+/g, ' ').replace('#', ''));
}

 var ID = getParamByName("memberid", window.location);