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非常に単純なUDP受信コード
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"UDP通信でデータを受信する最も単純なコード Hisashi Ishihara 2018-04-24"
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"import socket #通信用\n",
"\n",
"address = ('127.0.0.1', 1308) #通信を受け付けるIPアドレスと受信に使うポート番号の設定.127.0.0.1とするとPC内通信.\n",
"\n",
"udp = socket.socket(socket.AF_INET, socket.SOCK_DGRAM) #udpという名前のUDPソケット生成\n",
"udp.bind(address) #udpというソケットにaddressを紐づける\n",
"\n",
"while True: #受信ループ\n",
" try:\n",
" rcv_byte = bytes() #バイトデータ受信用変数\n",
" rcv_byte, addr = udp.recvfrom(1024) #括弧内は最大バイト数設定\n",
" msg = rcv_byte.decode() #バイトデータを文字列に変換\n",
" print(msg) #文字列表示\n",
" if msg == 'close': #受信した文字列がcloseならUDPソケットを閉じて終了\n",
" udp.close()\n",
" break\n",
" except KeyboardInterrupt:#強制終了を検知したらUDPソケットを閉じて終了\n",
" udp.close()"
]
}
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