var adapter =  wx.getNFCAdapter();
    adapter.startDiscovery({
      complete: function (res) {
        console.log(res);
      }
    })
    adapter.onDiscovered(function callback(res){
      console.log(JSON.stringify(res));
    });

iOS 端运行提示：

不支持iOS吗？文档没有说只支持 android

https://developers.weixin.qq.com/miniprogram/dev/api/device/nfc/NFCAdapter.startDiscovery.html