https://developers.weixin.qq.com/miniprogram/dev/framework/ability/canvas.html 最简单的例子，调用fillRect什么也没有画出来？

https://developers.weixin.qq.com/miniprogram/dev/api/device/bluetooth-peripheral/BLEPeripheralServer.startAdvertising.html 调用startAdvertising之前已经createBLEPeripheralServer成功。 createBLEPeripheralServer successed {errCode: 0, errMsg: "createBLEPeripheralServer:ok", server: t} Server信息 t {serverId: "1617130829", services: Array(0), onCharacteristicReadRequest: ƒ, offCharacteristicReadRequest: ƒ, onCharacteristicWriteRequest: ƒ, …} 执行startAdvertising时报no such server错误 Advertising failed {errCode: 10020, errMsg: "startBLEPeripheralAdvertising:fail no such server! serverId: 1617130829"} 代码如下： wx.openBluetoothAdapter({ //mode: 'peripheral', success: (res) => { console.info('Bluetooth adapter opened'); console.log('Creating BLEPeripheralServer'); wx.createBLEPeripheralServer({ success: (res) => { console.info('createBLEPeripheralServer successed', res); let server = res.server; console.log(server); let uuid = '000018F0-0000-1000-8000-00805F9BAAFB'; setInterval(() => { console.info('advertising %s', uuid); server.startAdvertising({ advertiseRequest: { connectable: true, serviceUuids: [ uuid ] } }).then( (res) => { console.log('Adverstising.. ', res); }, (res) => { console.warn('Advertising failed', res); }); }, 5000); }, fail: (res) => { console.warn('createBLEPeripheralServer failed'); }, complete: (res) => { console.debug('createBLEPeripheralServer completed'); } }); }, fail: (res) => { console.log('openBluetoothAdapter failed'); console.warn(res); }, complete: (res) => { console.debug('openBluetoothAdapter completed'); }, }) },