python-UDP传输模型

Posted 2020-09-28

 1 #!/usr/bin/python　　
 2 #coding=utf-8
 3 #服务器端
 4 from socket import *
 5 from time import ctime
 6 HOST="192.168.1.33"
 7 PORT=1235
 8 BUFSIZE=1024
 9 ADDR=(HOST,PORT)
10 
11 sockob=socket(AF_INET,SOCK_DGRAM)
12 sockob.bind(ADDR)
13 while 1:
14     print "waiting for message..."
15     data,addr=sockob.recvfrom(BUFSIZE)
16     print "client addr",addr
17     sockob.sendto("[%s]:%s"%(ctime(),data),addr)
18 sockob.close()

 

 1 #!/usr/bin/python
 2 #coding=utf-8
 3 #客户端
 4 from socket import *
 5 import sys
 6 HOST=sys.argv[1]
 7 PORT=int(sys.argv[2])
 8 BUFSIZE=1024
 9 ADDR=(HOST,PORT)
10 
11 sockob=socket(AF_INET,SOCK_DGRAM)
12 #sockob.bind(ADDR)　　　　＃这里不能加这个是因为操作在同一台机器．
13 while 1:
14     data=raw_input(‘>‘,)
15     if not data:
16         break
17     sockob.sendto(data,ADDR)　　　＃sendto的返回值是字符数量
18     data,ADDR=sockob.recvfrom(BUFSIZE)
19     print data
20 
21 sockob.close()