Python基础教程之tcp socket编程详解及简单实例

Python tcp socket编程详解

初学脚本语言Python，测试可用的tcp通讯程序：

服务器：

#!/usr/bin/env python 
# -*- coding: utf-8 -*- 

import socket 
import threading 
import time 

def tcplink(sock, addr): 
  print('Accept new connection from %s:%s...' % addr); 
  sock.send(b'Welcome!!!'); 
  while True: 
    data = sock.recv(1024); 
    time.sleep(1); 
    if not data or data.decode('utf-8') == 'exit': 
       break; 
    sock.send(b'Hello, %s!' % data); 
  sock.close(); 
  print('Connection from %s:%s closed.' % addr); 

if __name__ == "__main__": 

  s = socket.socket(socket.AF_INET, socket.SOCK_STREAM); 

  s.bind(('127.0.0.1', 9090)); 
  s.listen(8); #监听8个客户端； 
  print('waiting for connection...'); 

  while True: 
    sock, addr = s.accept(); 
    t = threading.Thread(target=tcplink, args=(sock,addr)); 
    t.start(); 

客户端：

#!/usr/bin/env python 
# -*- coding: utf-8 -*- 

import socket 

s = socket.socket(socket.AF_INET, socket.SOCK_STREAM); 
s.connect(('127.0.0.1', 9090)); 
print(s.recv(1024).decode('utf-8')); 
for data in [b'lk', b'aa', b'bb']: 
  s.send(data); 
  print(s.recv(1024).decode('utf-8')); 
s.send(b'exit'); 
s.close(); 

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