无法在两台具有node.js的本地计算机之间发送UDP消息

const dgram = require('dgram');
const message = 'Hello from sender!';

const client = dgram.createSocket('udp4');
const serverIP = '接收方IP地址';
const serverPort = '接收方端口号';

client.send(message, serverPort, serverIP, (error) => {
  if (error) {
    console.error(error);
    client.close();
  } else {
    console.log('Message sent successfully!');
    client.close();
  }
});

const dgram = require('dgram');

const server = dgram.createSocket('udp4');
const port = '接收方端口号';

server.on('message', (message, remote) => {
  console.log(`Received message: ${message} from ${remote.address}:${remote.port}`);
  server.close();
});

server.bind(port, () => {
  console.log(`Server is listening on port ${port}`);
});

node sender.js

node receiver.js