Compilation and coding problems

[mengxw]

I want to translate the ML firmware menu.

I tried to change the English prompt in the source code, but there was a mess after compiling.

I guess it may be the problem of character set. Maybe the character set does not contain Chinese.

How can I change the character set? If it's about fonts, how can I introduce my own fonts?

Ask for advice!

Sorry, I'm not good at English. Even this passage is translated by software。