33 lines
941 B
Python
33 lines
941 B
Python
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#!/usr/bin/python3
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# coding= utf-8
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import time
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import struct
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import socket
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# 本机信息
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host_ip = socket.gethostname()
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host_port = 6501
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# 组播组IP和端口
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mcast_group_ip = '239.255.255.252'
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mcast_group_port = 5678
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def sender():
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send_sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM, socket.IPPROTO_UDP)
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send_sock.setsockopt(socket.SOL_SOCKET, socket.SO_BROADCAST, 1)
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send_sock.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
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send_sock.bind((host_ip, host_port))
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# 设置存活时长
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ttl_bin = struct.pack('@i', 255)
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send_sock.setsockopt(socket.IPPROTO_IP, socket.IP_MULTICAST_TTL, ttl_bin)
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while True:
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data = '12345 english 汉字#测试'
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send_sock.sendto(str(data).encode('utf-8'), (mcast_group_ip, mcast_group_port))
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print(f'{time.strftime("%Y-%m-%d %H:%M:%S", time.localtime())}: send finish.')
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time.sleep(10)
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if __name__ == "__main__":
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sender()
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