jQuery获取地址栏参数插件(模仿C#)

$.request = (function () {
var apiMap = {};
function request(queryStr) {
var api = {};
if (apiMap[queryStr]) {
return apiMap[queryStr];
}
api.queryString = (function () {
var urlParams = {};
var e,
d = function (s) { return decodeURIComponent(s.replace(/\+/g, " ")); },
q = queryStr.substring(queryStr.indexOf(?) + 1),
r = /([^&=]+)=?([^&]*)/g;
while (e = r.exec(q))
urlParams[d(e[1])] = d(e[2]);

return urlParams;
})();
api.getUrl = function () {
var url = queryStr.substring(0, queryStr.indexOf(?) + 1);
for (var p in api.queryString) {
url += p + = + api.queryString[p] + "&";
}
if (url.lastIndexOf(&) == url.length - 1) {
return url.substring(0, url.lastIndexOf(&));
}
return url;
}
apiMap[queryStr] = api;
return api;
}
$.extend(request, request(window.location.href));
return request;
})();