用法： getParam("v");
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后的指定参数
原文地址：http://www.cnblogs.com/Mie929094441/p/7605657.html