python-socket TCP

tsTserv3.py服务端

from socket import *
from time import ctime
# python3
HOST = ''
PORT = 21567
BUFSIZ = 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(BUFSIZ)
        if not data:
            break
        tcpCliSock.send(('[%s] %s' % (ctime(), data.decode())).encode())
    tcpCliSock.close()
tcpSerSock.close()

tsTclnt3.py 客户端 

from socket import *
HOST = '127.0.0.1'
PORT = 21567
BUFSIZ = 1024
ADDR = (HOST, PORT)
tcpCliSock = socket(AF_INET, SOCK_STREAM)
tcpCliSock.connect(ADDR)
while True:
    data = input('> ')
    if not data:
        break
    tcpCliSock.send(bytes(data,'utf-8'))
    data = tcpCliSock.recv(BUFSIZ)
    if not data:
        break
    print(data.decode())
tcpCliSock.close()

　备注:

from socket import socket
# 创建服务器套接字
ss = socket()
# 套接字与地址绑定
ss.bind()
# 监听连接
ss.listen()
# 服务器无效循环
inf_loop:
    # 接受客户端连接
    cs = ss.accept()
    # 通信循环
    comm_loop:
        # 对话 接收/发送
        cs.recv() / cs.send()
    # 关闭客户端套接字
    cs.close()
# 关闭服务器套接字
ss.close()