目标：手机nfc识别ic卡获取ic卡的信息；
问题：nfcA.transceive获取的结果ArrayBuffer解析成字符串乱码，用decodeURIComponent报错：url malformed
手机：华为p30，EMUI:11.0.0，安卓10
ps:使用名叫“nfc读写”的小程序识别卡片可以得到一个类似id的的信息，如AD2A04AF

代码如下：

const app = getApp();
var NFCAdapter = wx.getNFCAdapter();
Page({
  data: {
    id: ""
  },
  onShow() {
    NFCAdapter.startDiscovery({
      success: res => {
        this.init();
      },
      fail: error => {
        console.log(error)
      }
    })
  },
  str2ab(str) {
    var buf = new ArrayBuffer(str.length * 2);
    var bufView = new Uint16Array(buf);
    for (var i = 0, strLen = str.length; i < strLen; i++) {
      bufView[i] = str.charCodeAt(i);
    }
    return buf;
  },
  init() {
    NFCAdapter.onDiscovered(callback => {
      if (callback.techs.includes(NFCAdapter.tech.nfcA)) {
        const nfcA = NFCAdapter.getNfcA();
        app.nfcA = nfcA;
        nfcA.connect({
          success: res => {
            nfcA.transceive({
              data: this.str2ab('GET DATA'),
              success: res => {
                console.log(res.data) //打印结果 <ArrayBuffer:byteLength=16>
                let k = String.fromCharCode.apply(null, new Uint16Array(res.data));
                console.log(k) // k为乱码
                console.log(decodeURIComponent(escape(k))) // 这里报错：url malformed
              },
              fail: error => {
                console.log(error)
              }
            })
          }
        })
      }
    })
  },
})