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