基于qt的利用qdbus接收hal的消息，检测U盘插入，可以分辨出是u盘还是硬盘、分区、usb。整个程序比较完善。-Based on the qt use qdbus receive hal message, detect U disk inserted, can tell u disk or hard disk partition, usb. The entire procedure is complete.

编辑代码 在/mnt下创建usb目录 查看U盘设备名称卸载U盘函数-Edit the code in the/mnt directory to create usb U disk device name to view uninstalled U disk function