Why is this happening in my code。为什么我的代码会是这样子

[angluds]

Hi everyone,

LIN=3, COL=3

[samus-aran]

Welcome to the GitHub Community, @angluds , we're happy you're here! You are more likely to get a useful response if you are posting your question(s) in the applicable category and are explicit about what your project entails--giving a few more details might help someone give you a nudge in the right direction. I've gone ahead and moved it for you. Good luck!

[iqnite]

The function you provided looks OK to me, the question marks are there because the Terminal can't display emojis and some special characters.