python-广播 

 1  #!/usr/bin/python
 2 #coding=utf-8
 3 #广播端
 4 import sys,socket
 5 import time
 6 
 7 s=socket.socket(socket.AF_INET,socket.SOCK_DGRAM) #创建数据报套接字
 8 s.setsockopt(socket.SOL_SOCKET,socket.SO_BROADCAST,1) #设置套接字选项可以发送广播
 9 dest=('broadcast',5455)  #广播地址默认的.255
10 #不用绑定,不用监听,不用accept
11 print "waiting for ..."
12 while 1:
13     time.sleep(1)
14     s.sendto("hello",dest)  #发送
15     buf,addr=s.recvfrom(1024) #接收
16     if not len(buf):break
17     print "REcv from:",addr   #打印

 

 1 #!/usr/bin/python
 2 #coding=utf-8
 3 #接收端
 4 import socket,traceback
 5  
 6 HOST = ''
 7 PORT = 9999
 8  
 9 s = socket.socket(socket.AF_INET,socket.SOCK_DGRAM)
10 s.setsockopt(socket.SOL_SOCKET,socket.SO_REUSEADDR,1)
11 s.setsockopt(socket.SOL_SOCKET,socket.SO_BROADCAST,1)
12 s.bind((HOST,PORT))
13  
14 while True:
15     try:
16         message,address = s.recvfrom(4096)
17         print "Got data from",address
18         s.sendto("I am here",address)
19     except (KeyboardInterrupt,SystemExit):
20         raise
21     except:
22         traceback.print_exc()

 

posted @ 2017-07-17 16:27  橙云生  阅读(1195)  评论(1)    收藏  举报