Root Checker

根检查是最好的应用程序，会检查，如果你的手机具有root访问权限

This app checks if your phone has root access. You can see information about: device and Android version, Superuser, BusyBox and Environment variables. It will check and verify the Su binary located on your device. Checks User and Group Id. The test confirms proper permissions and flags on the Su binary.