You can use PDFLaTeX or XeLaTeX to process your notes.

• If you are using PDFLaTeX, ctex package is used;
• If you are using XeLaTeX , xeCJK package is called when processing Chinese characters.

The test environment is Win10 + TeX Live 2018. If you are using a Mac/Linux system and compiled with XeLaTeX, please change the font in elegantnote.cls with your system font.

Note: If you are using PDFLaTeX, you do not need to change the font settings.