Hli, @Liuxinyu970226, just curious as I am working on double byte convertible keyboard, a third party/generic hardware:
>:Also I can't type slash (/) and minus (-) via left part of keyboard, but work for me via right part.
Do you refer left to alphabet keys, qwerty or any alignment, while right to ten-key area on your keyboard hardware?
First thought the firmware is not updated, but it is very small possibility... What is your hardware for keyboard manufactured by third party to your Desctop/mobile device? Or the one that came with the computing hardware?
FYI, My setting is un-standard, applying a third party keyboard default Windows to Mac Desktop and sometimes iMac, maybe that divides conditions with your case.