adb devices命令显示unauthorized：
user@PC:~$adb devices
List of devices attached
C4F124F1B9A98AE unauthorized
adb shell命令显示：
user@PC:~$adb shell
error: device unauthorized.
This adbd's $ADB_VENDOR_KEYS is not set; try 'adb kill-server' if that seems wrong.
Otherwise check for a confirmation dialog on your device.
解决方法：删除.android目录下 adbkey adbkey.pub 可以尝试重启
