如何在我的html5页面中使用web-nfc

if ('NDEFReader' in window) {
  const reader = new NDEFReader();
  reader.scan().then(() => {
    // 用户已授权
  }).catch((error) => {
    // 用户未授权或设备不支持
  });
} else {
  // 浏览器不支持Web NFC
}

reader.addEventListener('reading', event => {
  const message = event.message;
  for (const record of message.records) {
    console.log(record.recordType);
    console.log(record.data);
  }
});

const writer = new NDEFWriter();
const message = [
  new NDEFRecord({ recordType: 'text', data: 'Hello, NFC!' })
];
writer.write(message).then(() => {
  console.log('写入成功');
}).catch((error) => {
  console.log('写入失败', error);
});