有时候阳光很好，有时候阳光很暗，这就是生活。不就应迫求一切种类的快乐，就应只追求高尚的快乐。
首先声明，这不是我写的，而是我找到的，但是别人写的相当好。
# UDP multicast examples, Hugo Vincent, 2005-05-14.
import socket def send(data, port=50000, addr='239.192.1.100'):
"""send(data[, port[, addr]]) - multicasts a UDP datagram."""
# Create the socket
s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
# Make the socket multicast-aware, and set TTL.
s.setsockopt(socket.IPPROTO_IP, socket.IP_MULTICAST_TTL, 20) # Change TTL (=20) to suit
# Send the data
s.sendto(data, (addr, port)) def recv(port=50000, addr="239.192.1.100", buf_size=1024):
"""recv([port[, addr[,buf_size]]]) - waits for a datagram and returns the data.""" # Create the socket
s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM) # Set some options to make it multicast-friendly
s.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
try:
s.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEPORT, 1)
except AttributeError:
pass # Some systems don't support SO_REUSEPORT
s.setsockopt(socket.SOL_IP, socket.IP_MULTICAST_TTL, 20)
s.setsockopt(socket.SOL_IP, socket.IP_MULTICAST_LOOP, 1) # Bind to the port
s.bind(('', port)) # Set some more multicast options
intf = socket.gethostbyname(socket.gethostname())
s.setsockopt(socket.SOL_IP, socket.IP_MULTICAST_IF, socket.inet_aton(intf) + socket.inet_aton('0.0.0.0'))
s.setsockopt(socket.SOL_IP, socket.IP_ADD_MEMBERSHIP, socket.inet_aton(addr) + socket.inet_aton('0.0.0.0')) # Receive the data, then unregister multicast receive membership, then close the port
data, sender_addr = s.recvfrom(buf_size)
s.setsockopt(socket.SOL_IP, socket.IP_DROP_MEMBERSHIP, socket.inet_aton(addr) + socket.inet_aton('0.0.0.0'))
s.close()
return data
#!/usr/bin/env python
from socket import *from time import sleep,time,ctime
HOST = '229.0.0.15'PORT = 9999BUFSIZ = 1024ADDR = (HOST, PORT)
udpCliSock = socket(AF_INET, SOCK_DGRAM)
data = 't'*200count = 0while(count<100 ): udpCliSock.sendto(data, ADDR) sleep(1) count = count+1
udpCliSock.close()
到此这篇关于使用PYTHON接收多播数据的代码就介绍到这了。困住一个人的，从来不是年龄和身份，而是格局和观念。每个年纪，都是恰到好处的自己。趁未老，多！花开不是为了花落，是为了绽放！生命不是为了活着，是为了活得精彩！更多相关使用PYTHON接收多播数据的代码内容请查看相关栏目，小编编辑不易，再次感谢大家的支持！
