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()
