多线程简易版基于TCP协议的传输

 1 import socket
 2 from threading import Thread
 3 
 4 """
 5 服务端
 6     1.要有固定的IP和PORT
 7     2.24小时不间断提供服务
 8     3.能够支持并发
 9 """
10 
11 server = socket.socket()
12 server.bind((‘127.0.0.1‘,8080))
13 server.listen(5)
14 
15 
16 def talk(conn):
17     while True:
18         try:
19             data = conn.recv(1024)
20             if len(data) == 0:break
21             print(data.decode(‘utf-8‘))
22             conn.send(data.upper())
23         except ConnectionResetError as e:
24             print(e)
25             break
26     conn.close()
27 
28 while True:
29     conn, addr = server.accept()  # 监听 等待客户端的连接  阻塞态
30     print(addr)
31     t = Thread(target=talk,args=(conn,))
32     t.start()

 1 import socket
 2 
 3 
 4 client = socket.socket()
 5 client.connect((‘127.0.0.1‘,8080))
 6 
 7 while True:
 8     client.send(b‘hello‘)
 9     data = client.recv(1024)
10     print(data.decode(‘utf-8‘))