直接上代码：Server端:复制代码 代码如下: #!/usr/bin/env python # UDP Echo Server –  udpserver.py import socket, traceback host = ” port = 54321 s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM) s.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1) s.bind((host,