是在电脑上编程，只是我剪辑成竖屏。因为我不止投稿在youtube上，所以将时长短一点的视频剪辑成竖屏，会更方便手机观看。稍长一点的视频为横屏视频。

横屏确实更加适合电脑观看，我之后会重新斟酌。感谢您的意见。

Thank you for your question! The cursor is indeed moved by the arrow keys in my Vscode. I didn't use any special keyboard mapping tools or plugins to change the default behavior.

😮​I can't believe it. I'm curious how you code without pausing.

@@ddpAl-s5q There are definitely pauses while I'm coding, but I edited them out in the final video to keep it concise and focused.😆

谢谢！

哇太感谢了

yes it looks like switch case in C, and it is more powerful