微信小程序便携蓝牙打印demo。。。。。。。。。(WeChat small program portable Bluetooth print demo. qirui)

微信小程序连接蓝牙打印机打印示例代码，包括蓝牙状态检测、蓝牙设备发现等。(WeChat applet connect bluetooth printer to print sample code, including bluetooth status detection, bluetooth device discovery, etc.)