Page({   data:{         devices:[{name:''}]   },   onLoad:function(options){     // 页面初始化 options为页面跳转所带来的参数     //this.closeBluetooth();     // this.onBluetoothAdapterStateChange();     // this.onBluetoothDeviceFound();   },   startTest:function(){ this.showMessage("开始搜索外围蓝牙设备...",1500);     this.setData({         devices:[{name:''}]     })     this.openBluetooth();   },   showMessage:function(info,dur){       wx.showToast({           title:info,           icon: 'loading',           duration:dur       })   },   showModal:function(content){       wx.showModal({         title: '提示',         content: content       })   },   //初始化蓝牙适配器   openBluetooth:function(){      var that = this;     console.log("开始初始化蓝牙适配器！",that);     wx.openBluetoothAdapter({         success: function (res) {             console.log(res)         }     })   },