from multiprocessing import Process
import socket,sys,os

class MyProcess(Process):
    def __init__(self,args):
        super().__init__()
        self.args = args[0:2]
        self.fn = args[2]


    def run(self):
        sys.stdin = os.fdopen(self.fn)
        print("子进程开始.")
        while 1:

            try:
                client_from_msg = self.args[0].recv(1024).decode()
                print(client_from_msg)
                if not client_from_msg: break
                server_input = input(" >>:").strip()
                se = server_input.encode()
                self.args[0].send(se)
            except Exception:
                break

if __name__ == ‘__main__‘:
    print("主进程开始.")
    server = socket.socket()
    ip_port = ("127.0.0.1", 8020)
    server.bind(ip_port)
    server.listen(2)
    fn = sys.stdin.fileno()
    while 1:
        conn, client_addr = server.accept()
        p = MyProcess(args=(conn, client_addr,fn))
        p.start()

import socket

client = socket.socket()
ip_port = ("127.0.0.1", 8020)
client.connect(ip_port)
while 1:

    inp = input(">>>:")
    if not inp: continue
    client.send(inp.encode("utf-8"))
    from_server_msg = client.recv(1024).decode()
    print("来自服务端的消息:", from_server_msg)

client.close()