非常に単純なUDP受信コード

UDP_simpleReceiver.ipynb

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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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