//获取url参数
window.getParam = function(url, id) {
url = url+ "";
var regstr = "/(\\?|\\&)" + id + "=([^\\&]+)/";
var reg = eval(regstr);
var result = url.match(reg);
if (result && result[2]) {
return result[2];
}else{
return ‘‘
}
}
原文：https://www.cnblogs.com/weixuechao/p/11137017.html