anchor.diff:  * https://detail.tmall.com/item.htm?spm=a1z10.3-b.w4011-7992896792.27.3eb5c812kSWDR2&id=37045140798&rn=ac0a6acdb98be4a024e97f81e9924fdc&abbucket=1[深入理解LINUX内核^]
   |===
   
  +== 计算机基础
   [cols=",a,a"]
  -.其他
   |===
   |条目 |入门 |进阶
   
  
positive.code: |
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  [cols=",a"]
  == 应用
  |===
  |条目 |资源
  
  
negative.code: :toc:
  :toc-title: 目录
  
  == 语言
  [cols=",a,a"]
  |===
  |条目 |入门 |进阶
   
  