vue3中展示markdown格式文章的三种形式

# 使用 npm
npm i @kangc/v-md-editor -S
 
# 使用yarn
yarn add @kangc/v-md-editor

import VMdEditor from '@kangc/v-md-editor';
import '@kangc/v-md-editor/lib/style/base-editor.css';
 
const app = createApp(/*...*/);
 
app.use(VMdEditor);

<template>
  <v-md-editor v-model="text" mode="preview"></v-md-editor>
</template>、
//text为要传入的markdown格式的内容

import VMdPreview from '@kangc/v-md-editor/lib/preview';
import '@kangc/v-md-editor/lib/style/preview.css';
 
const app = createApp(/*...*/);
 
app.use(VMdPreview);

<template>
  <v-md-preview :text="text"></v-md-preview>
</template>
//text为要传入的markdown格式的内容

import VMdPreviewHtml from '@kangc/v-md-editor/lib/preview-html';
import '@kangc/v-md-editor/lib/style/preview-html.css';
 
// 引入使用主题的样式
import '@kangc/v-md-editor/lib/theme/style/vuepress';
 
const app = createApp(/*...*/);
 
app.use(VMdPreviewHtml);

<template>
  <!-- preview-class 为主题的样式类名，例如vuepress就是vuepress-markdown-body -->
  <v-md-preview-html :html="html" preview-class="vuepress-markdown-body"></v-md-preview-html>
</template>

import vuepressTheme from '@kangc/v-md-editor/lib/theme/vuepress.js';
 
import '@kangc/v-md-editor/lib/theme/style/vuepress.css';    
//这个css文件，它与 vuepressTheme 主题相关，定义了主题的颜色、字体、间距等样式。
 
// 使用 vuepress 主题
VueMarkdownEditor.use(vuepressTheme);

import Prism from 'prismjs';
 
VueMarkdownEditor.use({
  Prism,
});

//main.ts中
 
import VueMarkdownEditor from '@kangc/v-md-editor';
import createLineNumbertPlugin from '@kangc/v-md-editor/lib/plugins/line-number/index';
 
VueMarkdownEditor.use(createLineNumbertPlugin());

import VueMarkdownEditor from '@kangc/v-md-editor';
import createHighlightLinesPlugin from '@kangc/v-md-editor/lib/plugins/highlight-lines/index';
import '@kangc/v-md-editor/lib/plugins/highlight-lines/highlight-lines.css';
 
VueMarkdownEditor.use(createHighlightLinesPlugin());

import VueMarkdownEditor from '@kangc/v-md-editor';
import createCopyCodePlugin from '@kangc/v-md-editor/lib/plugins/copy-code/index';
import '@kangc/v-md-editor/lib/plugins/copy-code/copy-code.css';
 
VueMarkdownEditor.use(createCopyCodePlugin());

<template>
  <v-md-editor v-model="text" height="500px" @copy-code-success="handleCopyCodeSuccess" />
</template>
 
//使用@copy-code-success
<script>
export default {
  methods: {
    handleCopyCodeSuccess(code) {
      console.log(code);
    },
  },
};
</script>

npm install markdown-it vue-demi markdown-it-katex markdown-it-breaks markdown-it-mathjax3 markdown-it-highlightjs highlight.js

<template>
  <div class="markdown-body" v-html="renderedContent"></div>
</template>

<script setup>
import { ref, computed, onMounted } from 'vue'
import MarkdownIt from 'markdown-it'
import mk from 'markdown-it-katex'
import breaks from 'markdown-it-breaks'
import hljs from 'highlight.js'
import 'highlight.js/styles/atom-one-light.css'
import 'katex/dist/katex.min.css'

const props = defineProps({
  content: {
    type: String,
    required: true
  }
})

// 创建markdown-it实例并配置插件
const md = new MarkdownIt({
  html: true,
  linkify: true,
  typographer: true,
  breaks: true,
  highlight: function (str, lang) {
    if (lang && hljs.getLanguage(lang)) {
      try {
        return `<pre class="hljs"><code>${hljs.highlight(str, { language: lang, ignoreIllegals: true }).value}</code></pre>`;
      } catch (__) {}
    }
    return `<pre class="hljs"><code>${md.utils.escapeHtml(str)}</code></pre>`;
  }
})
.use(mk) // 启用KaTeX数学公式支持
.use(breaks); // 启用换行支持

// 配置链接在新窗口打开
const defaultRender = md.renderer.rules.link_open || function(tokens, idx, options, env, self) {
  return self.renderToken(tokens, idx, options);
};
md.renderer.rules.link_open = function (tokens, idx, options, env, self) {
  tokens[idx].attrPush(['target', '_blank']);
  return defaultRender(tokens, idx, options, env, self);
};

// 计算渲染后的HTML
const renderedContent = computed(() => {
  return md.render(props.content || '');
});
</script>

<style>
.markdown-body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Helvetica, Arial, sans-serif;
  line-height: 1.6;
  padding: 20px;
  color: #24292e;
}

.markdown-body code {
  font-family: 'SFMono-Regular', Consolas, 'Liberation Mono', Menlo, monospace;
  background-color: rgba(27, 31, 35, 0.05);
  border-radius: 3px;
  padding: 0.2em 0.4em;
}

.markdown-body pre {
  background-color: #f6f8fa;
  border-radius: 3px;
  padding: 16px;
  overflow: auto;
}

.hljs {
  padding: 0;
  background: transparent;
}
</style>

<template>
  <div>
    <h1>Markdown 预览</h1>
    <MarkdownView :content="markdownContent" />
  </div>
</template>

<script setup>
import MarkdownView from '@/components/MarkdownView.vue'
import { ref } from 'vue'

const markdownContent = ref(`
# 标题

这是一段普通文本

## 代码示例
\`\`\`javascript
const hello = 'world';
console.log(hello);
\`\`\`

## 数学公式
$E = mc^2$

## 表格
| 姓名 | 年龄 |
| ---- | ---- |
| 张三 | 20   |
| 李四 | 25   |
`)
</script>

npm install markdown-it-emoji markdown-it-sub markdown-it-sup markdown-it-footnote

npm install github-markdown-css

import 'github-markdown-css/github-markdown.css'