Henry 多余的按钮都是自己添加的，修改源文件。修改前请备份源文件。
第一步：添加按钮
参照下方文件的格式，根据您自己的源文件内的按钮变量名、格式添加文件末尾的按钮代码。需要修改的文件路径： /vendor/flarum/markdown/js/dist/forum.js （这里示例代码的 变量可能跟您的源文件不同，请参照实例格式自行修改）。
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/*! https://mths.be/startswith v0.2.0 by @mathias */
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/*!
* Includes modified code from GitHub Markdown Toolbar Element
* https://github.com/github/markdown-toolbar-element/
*
* Original Copyright GitHub, Inc.
* Released under the MIT license
* https://github.com/github/markdown-toolbar-element/blob/master/LICENSE
*/
app.initializers.add("flarum-markdown",(function(e){var t=1;Object(i.extend)(l.a.prototype,"init",(function(){this.textareaId="textarea"+t++})),Object(i.extend)(l.a.prototype,"view",(function(e){e.children[0].attrs.id=this.textareaId})),Object(i.extend)(l.a.prototype,"configTextarea",(function(e,t,n,i){if(!n){var r=new s.a(t);r.disableInline(),r.ignoreTab(),i.onunload=function(){r.destroy()}}})),Object(i.extend)(l.a.prototype,"toolbarItems",(function(t){var n=function(t){return e.translator.trans("flarum-markdown.forum.composer."+t+"_tooltip")};t.add("markdown",m(h,{for:this.textareaId},
m(T,{title:n("header"),icon:"fas fa-heading",style:{prefix:"### "}}),
m(T,{title:n("bold"),icon:"fas fa-bold",style:{prefix:"**",suffix:"**",trimFirst:!0},hotkey:"b"}),
m(T,{title:n("italic"),icon:"fas fa-italic",style:{prefix:"_",suffix:"_",trimFirst:!0},hotkey:"i"}),
//# Custom button
m(T,{title:n("underline"),icon:"fas fa-underline",style:{prefix:"[u]",suffix:"[/u]",trimFirst:!0},hotkey:"u"}),
m(T,{title:n("strikethrough"),icon:"fas fa-strikethrough",style:{prefix:"~~",suffix:"~~",trimFirst:!0},hotkey:"s"}),
//#
m(T,{title:n("quote"),icon:"fas fa-quote-left",style:{prefix:"> ",multiline:!0,surroundWithNewlines:!0}}),
m(T,{title:n("code"),icon:"fas fa-code",style:{prefix:"`",suffix:"`",blockPrefix:"```",blockSuffix:"```"}}),
//# Custom button
m(T,{title:n("codebox"),icon:"fas fa-file-code",style:{prefix:"```",suffix:"\n```",trimFirst:!0},hotkey:"d"}),
m(T,{title:n("link"),icon:"fas fa-link",style:{prefix:"[",suffix:"](url)",replaceNext:"url",scanFor:"https?://"}}),
m(T,{title:n("image"),icon:"fas fa-image",style:{prefix:"",replaceNext:"src",scanFor:"https?://"}}),
m(T,{title:n("unordered_list"),icon:"fas fa-list-ul",style:{prefix:"- ",multiline:!0,surroundWithNewlines:!0}}),
m(T,{title:n("ordered_list"),icon:"fas fa-list-ol",style:{prefix:"1. ",multiline:!0,orderedList:!0}}),
//# Custom button
m(T,{title:n("center"),icon:"fas fa-align-center",style:{prefix: '[center]', suffix: '[/center]'}}),
),100)}))}))}]);
//# sourceMappingURL=forum.js.map
按钮代码构成：
按钮名 图标代码 前缀 后缀 去除首尾字符 快捷键
m(T,{title:n("codebox"),icon:"fas fa-file-code",style:{prefix:"```",suffix:"\n```",trimFirst:!0},hotkey:"d"}),
第二步：添加翻译
- 前往 Markdown 插件的翻译文件目录
/vendor/flarum/markdown/locale/
- 修改
en.yaml 文件添加英文翻译、新建 zh-Hans.yaml 文件添加中文翻译。
- 翻译键由按钮名组成，以第一步的按钮代码为例，codebox 的翻译键为：
codebox_tooltip: 代码块
