//获取URL参数
name 参数名称
var getParam = function(name){ ???????var search = document.location.search; ???????var pattern = new RegExp("[?&]"+name+"\=([^&]+)", "g"); ???????var matcher = pattern.exec(search); ???????var items = null; ???????if(null != matcher){ ???????????????try{ ???????????????????????items = decodeURIComponent(decodeURIComponent(matcher[1])); ???????????????}catch(e){ ???????????????????????try{ ???????????????????????????????items = decodeURIComponent(matcher[1]); ???????????????????????}catch(e){ ???????????????????????????????items = matcher[1]; ???????????????????????} ???????????????} ???????} ???????return items;};银联二维码H5项目，支付成功页面，需要获取url参数。
JS获取URL参数
原文地址：https://www.cnblogs.com/ourLifes/p/8422265.html