Jekyll Usage

If you use Jekyll, see here disabled default syntax highlighter

vim _config.yml add highlighter: none

Source: https://vilcins.medium.com/disable-jekylls-default-syntax-highlighter-rouge-12130ccac779

2023-08-28 update

According to my review of the kramdown official website, the previous usage highlighter: none can solve the problem, but it is not a standard way to disable it. The following method is recommended first:

kramdown:
  syntax_highlighter: hljs # 语法高亮器，可以是 rouge（默认）或其他值
  syntax_highlighter_opts: # 语法高亮器选项，针对 Rouge 的设置
     disable: true     # true 为禁用 Kramdown 的默认高亮功能
#  input: GFM # 输入格式，可以是 GFM（GitHub Flavored Markdown）或 Kramdown
#  hard_wrap: true # 是否自动插入换行符

And thanks @joshgoebel