tcp实现并发效果

服务端

from multiprocessing import Process
from threading import  Thread
import socket



def lunch(conn):
    while True:
        res = conn.recv(1024)
        if len(res) == 0:break
        res = res.decode('utf-8')
        msg = f'{res}外卖已经发货了'
        print(msg)
        conn.send(msg.encode("utf-8"))
    conn.close()



if __name__ == '__main__':
    s = socket.socket()
    s.bind(('127.0.0.1',8080))
    s.listen(5)
    while True:
        conn,addr = s.accept()
        # t = Thread(target=lunch,args=(conn,))
        t = Process(target=lunch,args=(conn,))
        t.start()

　　客户端

import socket

s = socket.socket()
s.connect(('127.0.0.1',8080))

while True:
    msg = input("your name:")
    s.send(msg.encode('utf-8'))
    data = s.recv(1024)
    print(data.decode('utf-8'))