/// <summary>
        /// 获取web服务实例
        /// </summary>
        /// <typeparam name="T">服务代理类</typeparam>
        /// <returns></returns>
        public static T GetInsatnce<T>() where T : System.Web.Services.Protocols.SoapHttpClientProtocol
        {
            string fullWebUrlPath = string.Empty;
            Type type = typeof(T);
            object obj = Activator.CreateInstance(type);
            T instance = obj as T;
            System.Reflection.PropertyInfo propertyInfo = type.GetProperty("Url");
            fullWebUrlPath = Prefix_WebServiceURL + string.Format("/{0}/{0}.asmx", type.Name);
            propertyInfo.SetValue(obj, fullWebUrlPath, null);
            return instance;
        }