python小程序之并发连接

import threading
import  socket
import time
def conn():
    cli = socket.socket()
    cli.connect(("58.68.232.139",80))
    while True:
        data = input(">>>").strip()
        if len(data)  == 0:continue
        cli.send(data.encode())
        reciv = cli.recv(1024)
        print(reciv)
for i in range(2000):
    t =threading.Thread(target=conn)
    t.setDaemon(True)
    t.start()
time.sleep(15)
print("--main--")