python创建tcp服务端和客户端

1.tcp服务端server

 1 from socket import *
 2 from time import ctime
 3 
 4 host = ''
 5 port = 9999
 6 bufsiz = 1024
 7 addr = (host, port)
 8 
 9 tcpsersock = socket(af_inet, sock_stream)   #创建套接字
10 tcpsersock.bind(addr)   #绑定ip和端口
11 tcpsersock.listen(5)    #监听端口，最多5人排队
12 
13 while true:
14     print('waiting for connection...')
15     tcpclisock, addr = tcpsersock.accept()    #建立连接
16     print('...connected from:', addr)
17 
18     while true:
19         data = tcpclisock.recv(bufsiz)
20         if not data:
21             break
22         content = '[%s] %s' % (bytes(ctime(), "utf-8"), data)
23         print(data)
24         print(type(content))
25         tcpclisock.send(content.encode("utf-8"))
26 
27     tcpclisock.close()
28 
29 tcpsersock.close()

 

 

2.tcp客户端client

 1 from socket import *
 2 
 3 host = '127.0.0.1'  # or 'localhost'
 4 port = 9999
 5 bufsiz = 1024
 6 addr = (host, port)
 7 
 8 tcpclisock = socket(af_inet, sock_stream)
 9 tcpclisock.connect(addr)
10 
11 while true:
12     data = input('> ')
13     if not data:
14         break
15 
16     tcpclisock.send(data.encode("utf-8"))
17     data = tcpclisock.recv(bufsiz)
18     if not data:
19         break
20     print(data.decode("utf-8"))
21 
22 tcpclisock.close()