feat: 给所有 md 文件生成的文档添加代码复制按钮

Author: HouLiXieBuRou

src/main.js

@@ -9,6 +9,8 @@ import { install as VueMonacoEditorPlugin } from '@guolao/vue-monaco-editor';
 import VMdPreview from '@kangc/v-md-editor/lib/preview';
 import '@kangc/v-md-editor/lib/style/preview.css';
 import vuepressTheme from '@kangc/v-md-editor/lib/theme/vuepress.js';
+import createCopyCodePlugin from '@kangc/v-md-editor/lib/plugins/copy-code/index';
+import '@kangc/v-md-editor/lib/plugins/copy-code/copy-code.css';
 import '@kangc/v-md-editor/lib/theme/style/vuepress.css';
 import './css/index.scss';
 import './css/element-plus.scss';
@@ -47,6 +49,9 @@ VMdPreview.use(vuepressTheme, {
   Prism
 });
 
+// copy code
+VMdPreview.use(createCopyCodePlugin());
+
 // highlightjs
 import 'highlight.js/styles/stackoverflow-light.css';
 // import hljs from 'highlight.js/lib/core';