首先对接收数据进行核对，如果不是本地地址，放弃，如果是本地地址，在检测命令是否正确，如果正确，做出处理后返回PC本地地址并发送命令-First checking of the received data, if not a local address, to give up, and if it is a local address, in the detection command is correct, and if correct, the treatment is made back t