JavaScript中的MAC地址

const os = require('os');
const networkInterfaces = os.networkInterfaces();

for (const key in networkInterfaces) {
  const iface = networkInterfaces[key];
  for (const address of iface) {
    if (address.family === 'IPv4' && !address.internal) {
      console.log(`MAC地址: ${address.mac}`);
    }
  }
}