Typora自动编号的具体操作 Typora自动编号的具体操作

概述在使用Typora写比较长的文章时，需要给章节编号，方便区分层次。如果手动编号，一旦章节顺序改变，很多章节的编号都需要一一手动修改，极其麻烦。
【Typora自动编号的具体操作】Typora官方提供了自动编号的方法：https://support.typora.io/Auto-Numbering/。本文将对官方提供的方法，以及简单改进进行介绍。
原理这个方法的原理是，Typora基于浏览器开发（使用快捷键Shift+F12可以打开开发者工具）。因此，可以利用CSS实现自动编号。
具体操作

打开Typora -> 文件 -> 偏好设置 -> 外观 -> 打开主题文件夹。
在主题文件夹下新建文件base.user.css。
将https://support.typora.io/Auto-Numbering/中提供的三份代码（分别实现文章内容自动编号、TOC自动编号、侧边栏大纲自动编号）复制到base.user.css中。
重启Typora。

改进官方提供的代码会对一级标题进行编号，但实际写文章时，一级标题往往是文章标题，无需编号，因此，我对代码进行了简单修改。下面是修改后的代码：
文章内容自动编号：

/** initialize css counter */h1 {counter-reset: h2}h2 {counter-reset: h3}h3 {counter-reset: h4}h4 {counter-reset: h5}h5 {counter-reset: h6}/** put counter result into headings */#write h2:before {counter-increment: h2; content: counter(h2) ". "}#write h3:before,h3.md-focus.md-heading:before /** override the default style for focused headings */ {counter-increment: h3; content: counter(h2) "." counter(h3) ". "}#write h4:before,h4.md-focus.md-heading:before {counter-increment: h4; content: counter(h2) "." counter(h3) "." counter(h4) ". "}#write h5:before,h5.md-focus.md-heading:before {counter-increment: h5; content: counter(h2) "." counter(h3) "." counter(h4) "." counter(h5) ". "}#write h6:before,h6.md-focus.md-heading:before {counter-increment: h6; content: counter(h2) "." counter(h3) "." counter(h4) "." counter(h5) "." counter(h6) ". "}/** override the default style for focused headings */#write>h3.md-focus:before,#write>h4.md-focus:before,#write>h5.md-focus:before,#write>h6.md-focus:before,h3.md-focus:before,h4.md-focus:before,h5.md-focus:before,h6.md-focus:before {color: inherit; border: inherit; border-radius: inherit; position: inherit; left:initial; float: none; top:initial; font-size: inherit; padding-left: inherit; padding-right: inherit; vertical-align: inherit; font-weight: inherit; line-height: inherit; }

TOC自动编号：

/* No link underlines in TOC */.md-toc-inner {text-decoration: none; } .md-toc-h1 {margin-left: 0; font-size: 1.5rem; counter-reset: h2toc} .md-toc-h2 {font-size: 1.1rem; margin-left: 2rem; counter-reset: h3toc} .md-toc-h3 {margin-left: 3rem; font-size: .9rem; counter-reset: h4toc} .md-toc-h4 {margin-left: 4rem; font-size: .85rem; counter-reset: h5toc} .md-toc-h5 {margin-left: 5rem; font-size: .8rem; counter-reset: h6toc} .md-toc-h6 {margin-left: 6rem; font-size: .75rem; } .md-toc-h2:before {color: black; counter-increment: h2toc; content: counter(h2toc) ". "} .md-toc-h2 .md-toc-inner {margin-left: 0; } .md-toc-h3:before {color: black; counter-increment: h3toc; content: counter(h2toc) ". " counter(h3toc) ". "} .md-toc-h3 .md-toc-inner {margin-left: 0; } .md-toc-h4:before {color: black; counter-increment: h4toc; content: counter(h2toc) ". " counter(h3toc) ". " counter(h4toc) ". "} .md-toc-h4 .md-toc-inner {margin-left: 0; } .md-toc-h5:before {color: black; counter-increment: h5toc; content: counter(h2toc) ". " counter(h3toc) ". " counter(h4toc) ". " counter(h5toc) ". "} .md-toc-h5 .md-toc-inner {margin-left: 0; } .md-toc-h6:before {color: black; counter-increment: h6toc; content: counter(h2toc) ". " counter(h3toc) ". " counter(h4toc) ". " counter(h5toc) ". " counter(h6toc) ". "} .md-toc-h6 .md-toc-inner {margin-left: 0; }

侧边栏大纲自动编号：

.outline-h1 {counter-reset: h2} .outline-h2 {counter-reset: h3} .outline-h3 {counter-reset: h4} .outline-h4 {counter-reset: h5} .outline-h5 {counter-reset: h6} .outline-h2>.outline-item>.outline-label:before {counter-increment: h2; content: counter(h2) ". "} .outline-h3>.outline-item>.outline-label:before {counter-increment: h3; content: counter(h2) "." counter(h3) ". "} .outline-h4>.outline-item>.outline-label:before {counter-increment: h4; content: counter(h2) "." counter(h3) "." counter(h4) ". "} .outline-h5>.outline-item>.outline-label:before {counter-increment: h5; content: counter(h2) "." counter(h3) "." counter(h4) "." counter(h5) ". "} .outline-h6>.outline-item>.outline-label:before {counter-increment: h6; content: counter(h2) "." counter(h3) "." counter(h4) "." counter(h5) "." counter(h6) ". "}

效果图