C#Éú³ÉXMLÎļþµÄ º¯Êý

protected void Page_Load(object sender, EventArgs e)
        {
            try
            {
                string saveFileName = "";
                string rankType = Convert.ToString(this.Request.QueryString["RankType"]);
                if ("JunTuan" == rankType)
                {
                    saveFileName = "JunTuan.xml";
                }
                else if ("GeRen" == rankType)
                {
                    saveFileName = "GeRen.xml";
                }
                else
                {
                    saveFileName = "Other.xml";
                    Response.Write("ÇëÊäÈëÕýÈ·µÄ²ÎÊý!");
             &