marked是对markdown进行解析的插件，它可以把markdown语法解析成html语法，从而实现页面效果，而highlight.js是对解析出的代码实现高亮效果

效果：

安装：避免踩我走的坑，安装尽量按照这个版本安装

npm install marked@0 --save

npm install highlight.js@9 --save

 

代码：index.vue

<template>
  <div class="detail">
    <div class="markdown-body">
      <div class="article_message hljs renderNav" v-html="code"></div>
    </div>
  </div>
</template>

<script>
import marked from "marked"; // 引入marked
import hljs from "highlight.js"; // 引入 highlight.js
import "highlight.js/styles/monokai-sublime.css"; // 引入高亮样式 这里我用的是sublime样式

export default {
  name: "Detail",
  data() {
    return {
      code: "```javascript\nfunction(){\n\tconsole.log(123) //注释\n}\njavascript\nfunction(){\n\tconsole.log(123) //注释\n}\njavascript\nfunction(){\n\tconsole.log(123) //注释\n}\njavascript\nfunction(){\n\tconsole.log(123) //注释\n}\n```", // 要解析的markdown语法的内容
    };
  },
  mounted() {
    var rendererMD = new marked.Renderer();
    marked.setOptions({
      renderer: rendererMD,
      highlight: function (code, language) {
        const validLanguage = hljs.getLanguage(language)
          ? language
          : "plaintext";
        return hljs.highlight(validLanguage, code).value;
      },
      pedantic: false,
      gfm: true,
      tables: true,
      breaks: false,
      sanitize: false,
      smartLists: true,
      smartypants: false,
      xhtml: false,
    });
    this.code = marked(this.code); // 将markdown内容解析
  },
};
</script>