Is there a way to make all card problems in the same format without italics？ 
Is there a way to make the problem parts in all forms of cards in the same format without italics？ 
When you create cards, only using >>
Assuming you are asking how to turn descriptor cards into regular cards, select them and press ctrl+alt+q (q for Question). Do note that descriptors have a unique backwards card that asks for their parent - if you want to preserve those cards and remove italics, your only option is Custom CSS.
- How to modify shortcut keys for creating basic cards？
To create a multiline basic card:
- i can use shift+>>>, in english
- i can use Caps lock（Switch between Chinese and English, in mac desktop）+shift+>>>,in Chinese.
if i type shift+>>>,in Chinese, it would be like>>》
i need to Caps lock first - i use;;;easier, it is multiline descriptor card, in Chinese and english.
I want ;;;to create basic card, which i use a lot. - So i want to change the shortcut.
- i don’t know how to use css.
use this a lot:
I’m afraid there is currently no native way to change delimeters (so swap ;;; and >>>, as you would like). You can try and use a third-party keyboard macro program, though. This specific case also seems worth posting in Editor bugs for Non-Latin Languages | RemNote
Thank you for your reply 
. I have posted the Question supplement to the link you quoted. Someone encountered the same problem as me, and I added the comment.