/// <summary> /// 异步发送请求,并使用回调函数处理回调逻辑,也可以使用EndSend方法来接收返回值 /// </summary> /// <param name="request"> 请求 </param> /// <param name="callback"> 回调方法 </param> /// <param name="state"> 需要状态回调方法的参数 </param> /// <returns> </returns> public static IAsyncResult BeginSend(this IHttpRequest request, AsyncCallback callback, object state) => CallbackClient.BeginSend(request, callback, state);
