Python的socket编程

目前处在学习python的阶段，昨天看到了python的socket模块，分别实现TCP、UDP时间戳回显。

来源：http://www.open-open.com/code/view/1428648155843

1. # tcpServer.py
   
2. #!/usr/bin/python
   
3. # -*- coding: utf-8 -*-
   
4. 
   
5. from socket import *
   
6. from time import ctime
   
7. 
   
8. HOST = ''
   
9. PORT = 21156
   
10. BUFSIZE = 1024
    
11. ADDR = (HOST,PORT)
    
12. 
    
13. tcpServerSock = socket(AF_INET,SOCK_STREAM)
    
14. tcpServerSock.bind(ADDR)
    
15. tcpServerSock.listen(5)
    
16. 
    
17. while True:
    
18.         print 'waiting for connection...'
    
19.         tcpClientSock ,addr = tcpServerSock.accept()
    
20.         print '...connected from:',addr
    
21. 
    
22.         while True:
    
23.                 data=tcpClientSock.recv(BUFSIZE)
    
24.                 if not data:
    
25.                         break
    
26.                 tcpClientSock.send('[%s] %s' % (ctime(),data))
    
27. 
    
28.                 tcpClientSock.close()
    
29. tcpServerSock.close

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1. # tcpClient.py
   
2. #!/usr/bin/python
   
3. # -*- coding: utf-8 -*-
   
4. 
   
5. from socket import *
   
6. 
   
7. HOST = 'localhost'
   
8. PORT = 21156
   
9. BUFSIZE = 1024
   
10. ADDR = (HOST,PORT)
    
11. 
    
12. tcpClientSock = socket(AF_INET,SOCK_STREAM)
    
13. tcpClientSock.connect(ADDR)
    
14. 
    
15. while True:
    
16.         data = raw_input('>')
    
17.         if not data:
    
18.                 break
    
19.         tcpClientSock.send(data)
    
20.         data = tcpClientSock.recv(BUFSIZE)
    
21.         if not data:
    
22.                 break
    
23.         print data
    
24. 
    
25. tcpClientSock.close()

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1. #udpServer.py
   
2. #!/usr/bin/python
   
3. # -*- coding: utf-8 -*-
   
4. 
   
5. from socket import *
   
6. from time import ctime
   
7. 
   
8. HOST = ''
   
9. PORT = 21156
   
10. BUFSIZE = 1024
    
11. ADDR = (HOST,PORT)
    
12. 
    
13. udpServerSock = socket(AF_INET,SOCK_DGRAM)
    
14. udpServerSock.bind(ADDR)
    
15. 
    
16. while True:
    
17.         print 'waiting for message...'
    
18.         data ,addr = udpServerSock.recvfrom(BUFSIZE)
    
19.         udpServerSock.sendto('[%s] %s' % (ctime(),data), addr)
    
20.         print '...received from and returned to:',addr
    
21. 
    
22.                 tcpClientSock.close()
    
23. tcpServerSock.close
    
24. #udpClient.py
    
25. #!/usr/bin/python
    
26. # -*- coding: utf-8 -*-
    
27. 
    
28. from socket import *
    
29. # from time import ctime
    
30. 
    
31. HOST = 'localhost'
    
32. PORT = 21156
    
33. BUFSIZE = 1024
    
34. ADDR = (HOST,PORT)
    
35. 
    
36. udpClientSock = socket(AF_INET,SOCK_DGRAM)
    
37. 
    
38. while True:
    
39.         data = raw_input('>')
    
40.         if not data:
    
41.                 break
    
42.         udpClientSock.sendto(data,ADDR)
    
43.         data,ADDR = udpClientSock.recvfrom(BUFSIZE)
    
44.         if not data:
    
45.                 break
    
46.         print data
    
47. 
    
48. udpClientSock.close()

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