js获取url后面的参数

法一-正则表达式：

function getQueryString(name) { ????????var reg = new RegExp("(^|&)" + name + "=([^&]*)(&|$)", "i"); ????????var r = window.location.search.substr(1).match(reg); ????????if (r != null) return unescape(r[2]); ????????return null; ????} 

法二-拆分字符串：

function GetRequest() { ????var url = location.search; //获取url中"?"符后的字串 ????var theRequest = new Object(); ????if (url.indexOf("?") != -1) { ???????var str = url.substr(1); ???????strs = str.split("&"); ???????for(var i = 0; i < strs.length; i ++) { ??????????theRequest[strs[i].split("=")[0]]=unescape(strs[i].split("=")[1]); ???????} ????} ????return theRequest; ?} ?

法三-获取指定参数：

 /** ?* 获取指定的URL参数值 ?* URL:http://www.quwan.com/index?name=tyler ?* 参数：paramName URL参数 ?* 调用方法:getParam("name") ?* 返回值:tyler ?*/ function getParam(paramName) { ????paramValue = "", isFound = !1; ????if (this.location.search.indexOf("?") == 0 && this.location.search.indexOf("=") > 1) { ????????arrSource = unescape(this.location.search).substring(1, this.location.search.length).split("&"), i = 0; ????????while (i < arrSource.length && !isFound) arrSource[i].indexOf("=") > 0 && arrSource[i].split("=")[0].toLowerCase() == paramName.toLowerCase() && (paramValue = arrSource[i].split("=")[1], isFound = !0), i++ ????} ????return paramValue == "" && (paramValue = null), paramValue } 

获取url中的参数

原文地址：https://www.cnblogs.com/guolintao/p/8861956.html