一个Ajax类

程序代码:[removed]function Ajax(sUrl,sRecvTyp,sQueryString,oResultFunc) {this.Url = sUrl;this.QueryString = sQueryString;this.XmlHttp = this.createXMLHttpRequest();if (this.XmlHttp == null) {alert(“erro”);return;}var objxml = this.XmlHttp;objxml.onreadystatechange = function (){Aja