#### 1. 任务要求： 使用多线程完成一个全双工的QQ聊天程序 #### 2. 运行现象如下  ~~~ from threading import Thread from socket import * #1. 收数据，然后打印 def recvData(): while True: recvInfo = udpSocket.recvfrom(1024) print(">>%s:%s"%(str(recvInfo[1]), recvInfo[0])) #2. 检测键盘，发数据 def sendData(): while True: sendInfo = input("<<") udpSocket.sendto(sendInfo.encode("gb2312"), (destIp, destPort)) udpSocket = None destIp = "" destPort = 0 def main(): global udpSocket global destIp global destPort destIp = input("对方的ip:") destPort = int(input("对方的ip:")) udpSocket = socket(AF_INET, SOCK_DGRAM) udpSocket.bind(("", 4567)) tr = Thread(target=recvData) ts = Thread(target=sendData) tr.start() ts.start() tr.join() ts.join() if __name__ == "__main__": main() ~~~