python简单C/S模式示例

服务器端代码：

 #!/usr/bin/python

 import time, socket, threading

 # thread handle function
 def tcplink(sock, addr):
     print 'Accept new connection from %s:%s...' % addr
     sock.send('Welcome!')
     while True:
         data = sock.recv(1024)
         time.sleep(1)
         if data == 'exit' or not data:
             break
         sock.send('Hello, %s!' % data)
     sock.close()
     print 'Connection from %s:%s closed.' % addr

 # create socket object
 s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
 # listen port
 s.bind(('127.0.0.1', 9999))
 # start listen
 s.listen(5)
 # print prompt
 print 'Waiting for connection...'

 while True:
     # accept a new connection
     sock, addr = s.accept()
     # create new thread to handle tcp connection
     t = threading.Thread(target=tcplink, args=(sock, addr))
     t.start()

客户端代码：

 #!/usr/bin/python

 # import module
 import socket

 # create TCP object
 s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
 # connect sina
 s.connect(('127.0.0.1', 9999))
 # receive welcome
 print s.recv(1024)

 for data in ['zjw', 'ygl', 'lele']:
     # send data
     s.send(data)
     print s.recv(1024)
 while True:
     data = 1

设计思路还是那样的，服务器端监听固定端口，等待连接，客户端来连接，然后互相发送消息