<rich-text nodes="{{nodes}}" />
<rich-text nodes="{{nodes1}}" />
<rich-text nodes="{{nodes2}}" />

this.setData({
  nodes: "<h1 style='color:red;'>html标题</h1>",
  nodes1: [{
   name: "h1",
   attrs: {
    style: "color:red",
    class: "red"
   },
   children: [{
    type: "text",
    text: '结点列表标题'
   }]
  }],
  nodes2: [{
   name: "ul",
   attrs: {
    style: "padding:20px;border:1px solid blue;",
    class: "red"
   },
   children: [
    {
     name: "li",
     attrs: {
      style: "color:red",
      class: "red"
     },
     children: [{
      type: "text",
      text: '多层结点 无序列表'
     }],
    }, {
     name: "li",
     attrs: {
      style: "color:red",
      class: "red"
     },
     children: [{
      type: "text",
      text: '多层结点 无序列表1'
     }],
    }]
  }]
})