python创建udp服务端和客户端

1.udp服务端server

 1 from socket import *
 2 from time import ctime
 3 
 4 host = ''
 5 port = 8888
 6 bufsiz = 1024
 7 addr = (host, port)
 8 
 9 udpsersock = socket(af_inet, sock_dgram)
10 udpsersock.bind(addr)
11 
12 while true:
13     print('waiting for message...')
14     data, addr = udpsersock.recvfrom(bufsiz)
15 
16     content = '[%s] %s' % (bytes(ctime(), "utf-8"), data)
17     udpsersock.sendto(content.encode("utf-8"), addr)
18     print('...received from and returned to:', addr)
19 
20 udpsersock.close()

 

 

 

2.udp客户端client

 1 from socket import *
 2 
 3 host = 'localhost'
 4 port = 8888
 5 bufsiz = 1024
 6 addr = (host, port)
 7 
 8 udpclisock = socket(af_inet, sock_dgram)
 9 
10 while true:
11     data = input('> ')
12     if not data:
13         break
14 
15     udpclisock.sendto(data.encode("utf-8"), addr)
16     data, addr = udpclisock.recvfrom(bufsiz)
17     if not data:
18         break
19     print(data)
20 
21 udpclisock.close()