ARQ协议模拟实现是为了开发一个一种基于对话框的程序源码来模拟演示自动重发协议。输入模拟发送帧的数目，点击“发送”开始模拟。能设置模拟的网络传输参数，“发送方”与“接接收方”分别显示出来各自的状态与发送／接收帧的的情况。当前缓冲区显示出来当前缓冲区内的情况。发送全部完成后，统计所用时间与平均用时。它是运用MFC来构建的。 可直接使用。

-The ARQ protocol simulation to achieve in order to develop a dialog-based program source code to simulate demo automatic retransmission agreement. Input analog transmission frame number, click on the " send"　to start the simulation. Can set the transmission parameters of the simulated network, the " sender"　and " then recipient"　are displayed to the respective state and the transmission/reception frame of the case. The current buffer is displayed within the current buffer. Send completed statistics with time and the average time. It is the use the MFC to construct. Can be used directly.