Markdown WYSIWYG 编辑器（可视化相关常用）。
引用代码
<link rel="stylesheet" href="https://cdn.bootcdn.net/ajax/libs/toast-ui-editor/3.2.2/toastui-editor.min.css">\n<script src="https://cdn.bootcdn.net/ajax/libs/toast-ui-editor/3.2.2/toastui-editor-all.min.js"></script>资源地址
https://cdn.bootcdn.net/ajax/libs/toast-ui-editor/3.2.2/toastui-editor-all.min.js