实现服务端可以对多个客户端提供服务

服务端：

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

phone = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
phone.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR,1) # 端口复用
phone.bind(('127.0.0.1', 8090))
phone.listen(10)
while True: # 连接循环
 connt , client = phone.accept()
 print('starting ....')
 print(client)

 while True: # 通信循环
 try:
 data = connt.recv(1024)
 if not data :continue # 适用于Linux 操作系统
 print( data.decode('utf-8'))

 connt.send(data.upper())
 except ConnectionResetError: # 适用于windows操作系统
 break

 connt.close()
phone.close()

客户端：

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

phone1 = socket.socket(socket.AF_INET,socket.SOCK_STREAM)
phone1.connect(('127.0.0.1',8090))
while True:
 msg = input('>>>:').strip()
 if not msg:continue
 phone1.send(msg.encode('utf-8'))
 data1 =phone1.recv(1024)
 print(data1.decode('utf-8'))

phone1.close()