bsp;            /// <summary>
                   /// 清理所有正在使用的资源。
                   /// </summary>
                   protected override void Dispose( bool disposing )
                   {
                            if(disposing && components != null)
                            {
                                     components.Dispose();
                            }
                            base.Dispose(disposing);                 
                   }
                   #endregion
                   [WebMethod]
                   public string HelloWorld()
                   {
                            return "Hello World 用.NET写的web服务!!^_^";
                   }
                   [WebMethod]
                   public string datetostr(DateTime dt)//将时间转换为字符