How to resolve issues with running Chinese characters in LaTeX?

If Chinese characters cannot be displayed correctly in LaTeX, it may be due to the following reasons:

1. Translate the following text into English.
2. ctex is a package designed for typesetting Chinese documents in LaTeX.

I only need to use the “ctex” package.

1. Compilation Engine Issue: LaTeX has various compilation engines such as PDFLaTeX, XeLaTeX, and LuaLaTeX. Different compilation engines have varying levels of support for Chinese. If the compilation engine being used does not support Chinese, Chinese characters may not display correctly. You can try changing the compilation engine to resolve this issue, for example, using XeLaTeX or LuaLaTeX.
2. Input Encoding Issue: In LaTeX, it is necessary to use the correct input encoding to input Chinese characters. Common input encodings include GBK, UTF-8, and others. If the input encoding is incorrect, it may cause Chinese characters to not display correctly. You can try changing the input encoding to the correct one to ensure that the input Chinese characters are recognized correctly.

I hope the above solutions can help you resolve the issue of Chinese characters not displaying in LaTeX. If the problem persists, please provide more detailed information so that I can offer a more specific solution.