Python实现TCP通信的示例代码

#!/usr/bin/python
# -*- coding: UTF-8 -*-
# 文件名：tcpserver.py
 
import socket
import time
MaxBytes=1024*1024
 
server = socket.socket(socket.AF_INET,socket.SOCK_STREAM)
server.settimeout(60)
host = '127.0.0.1'
#host = socket.gethostname()
port = 11223
server.bind((host, port))    # 绑定端口
 
server.listen(1)           # 监听
try:
  client,addr = server.accept()     # 等待客户端连接
  print(addr," 连接上了")
  while True:
    data = client.recv(MaxBytes)
    if not data:
      print('数据为空，我要退出了')
      break
    localTime = time.asctime( time.localtime(time.time()))
    print(localTime,' 接收到数据字节数:',len(data))
    print(data.decode())
    client.send(data)
except BaseException as e:
  print("出现异常：")
  print(repr(e))
finally:
  server.close()          # 关闭连接
  print("我已经退出了，后会无期")

#!/usr/bin/python
# -*- coding: UTF-8 -*-
# 文件名：tcpclient.py
 
import socket
import time
MaxBytes=1024*1024
host ='127.0.0.1'
port = 11223
client = socket.socket(socket.AF_INET,socket.SOCK_STREAM)
client.settimeout(30)
client.connect((host,port))
while True:
  inputData=input();     #等待输入数据
  if(inputData=="quit"):
    print("我要退出了，再见")
    break
  sendBytes = client.send(inputData.encode())
  if sendBytes<=0:
    break;
  recvData = client.recv(MaxBytes)
  if not recvData:
    print('接收数据为空，我要退出了')
    break
  localTime = time.asctime( time.localtime(time.time()))
  print(localTime, ' 接收到数据字节数:',len(recvData))
  print(recvData.decode())
client.close()
print("我已经退出了，后会无期")