python核心编程socket备忘

服务器端：

# Echo server program
from socket import *
from time import ctime  
 
HOST = ''                 # Symbolic name meaning all available interfaces
PORT = 50007              # Arbitrary non-privileged port
BUFSIZE = 1024
ADDR = (HOST, PORT)  
 
tcpSerSock = socket(AF_INET, SOCK_STREAM)
tcpSerSock.bind(ADDR)
tcpSerSock.listen(5)  
 
while True:
    print('waiting for connection...')
    tcpCliSock, addr = tcpSerSock.accept()
    print('...connected from:', addr)  
 
    while True:
        data = tcpCliSock.recv(BUFSIZE).decode()
        if not data:
            break
        tcpCliSock.send(('[%s] %s' % (ctime(), data)).encode())
    tcpCliSock.close()
tcpSerSock.close()

　　客户端：

# Echo client program
from socket import*  
 
HOST = '127.0.0.1'
PORT = 50007              # The same port as used by the server
BUFSIZE = 1024
ADDR = (HOST, PORT)  
 
tcpCliSock = socket(AF_INET, SOCK_STREAM)
tcpCliSock.connect(ADDR)
while True:
    data = input('> ')
    if not data:
        break
    tcpCliSock.send(data.encode())
    data = tcpCliSock.recv(BUFSIZE).decode()
    if not data:
        break
    print(data)  
 
tcpCliSock.close()