Python并发编程-IO模型-IO多路复用实现SocketServer

• Server.py

import select
import socket
sk = socket.socket()
sk.bind(('127.0.0.1',8080))
sk.setblocking(False)
sk.listen()
read_lst = [sk] #select监听谁就放入list
while True: #[sk,conn]
    r_lst,w_lst,x_lsx = select.select(read_lst,[],[])
    # print('*******',r_lst)
    # print(sk)
    for i in r_lst:
        if i is sk:
            conn,addr = i.accept()
            # print(conn)
            read_lst.append(conn)
        else:
            ret = i.recv(1024)
            if ret == b'':
                i.close()
                read_lst.remove(i)
                continue
            print(ret)
            i.send(b'goodbye')

• client.py

import socket
import time
import threading
def func():
    sk = socket.socket()
    sk.connect(('127.0.0.1',8080))
    sk.send(b'hello')
    time.sleep(1)
    print(sk.recv(1024))
    sk.close()
for i in range(20):
    threading.Thread(target=func).start()