这个是一个子组件 <template> <view> <text class="node" v-html="label"></text> <view class="children"> <tree-node v-for="(child, key) in children" :key="key" :treeData="child" /> </view> </view> </template> <script> export default { name: 'TreeNode', props: { treeData: { type: Object | Array, required: true } }, computed: { label() { return ` <u-row justify="center" gutter="10" style="display: flex;justify-content: center; margin: 10px"> <u-col span="4"></u-col> <u-col span="4"> <view style="color: red; background: orange; border: 1px solid red;padding: 5px;"> id: ${this.treeData.id} </view> </u-col> <u-col span="4"></u-col> </u-row> <u-row justify="center" gutter="10" style="display: flex;justify-content: center;"> <u-col span="4" style="border: 1px solid red; text-align: center; margin: 10rpx;"> <view> extendOne: ${this.treeData.extendOne} </view> </u-col> <u-col span="4" style="border: 1px solid red; text-align: center; margin: 10rpx;"> <view> extendTwo: ${this.treeData.extendTwo}, </view> </u-col> <u-col span="4" style="border: 1px solid red; text-align: center; margin: 10rpx;"> <view> extendThree: ${this.treeData.extendThree} </view> </u-col> </u-row> ` }, children() { const userExtendThree = this.treeData.userExtendThree if (userExtendThree) { return [userExtendThree] } else { return [] } } } } </script> <style lang="scss" scoped> .tree { font-size: 16px; } .node { display: inline-block; margin-right: 10px; padding: 5px; } .children { margin-left: 20px; } </style> 这个是数据结构 { "createBy": "13774", "createTime": "2023-05-22 16:48:21", "updateBy": "13774", "updateTime": "2023-05-22 17:32:17", "remark": null, "id": 13774, "userId": 13774, "extendOne": 13775, "extendTwo": 13776, "extendThree": 13777, "isLeader": null, "extendId": null, "userExtendThree": { "createBy": "", "createTime": null, "updateBy": "", "updateTime": null, "remark": null, "id": 13777, "userId": 13777, "extendOne": 13778, "extendTwo": 13779, "extendThree": 13780, "isLeader": null, "extendId": null, "userExtendThree": null } } 帮我把label（）函数里面的css样式进行美化，画成树状结构的，正方形画成圆形。每一层 用 左 右 中 线段展示关系层级

好的，可以尝试以下代码来实现您的需求：

<template>
  <div class="tree">
    <div class="node" :class="{ 'node--has-children': hasChildren }" @click="toggle">
      <div class="node__content">
        <div class="node__circle"></div>
        <div class="node__label" v-html="label"></div>
      </div>
      <div class="node__children" v-show="isOpen">
        <tree-node v-for="(child, key) in children" :key="key" :tree-data="child" />
      </div>
    </div>
  </div>
</template>

<script>
export default {
  name: 'TreeNode',
  props: {
    treeData: {
      type: Object | Array,
      required: true
    }
  },
  data() {
    return {
      isOpen: false
    }
  },
  computed: {
    label() {
      return `
        <div class="node__id">${this.treeData.id}</div>
        <div class="node__extends">
          <div class="node__extend">extendOne: ${this.treeData.extendOne}</div>
          <div class="node__extend">extendTwo: ${this.treeData.extendTwo}</div>
          <div class="node__extend">extendThree: ${this.treeData.extendThree}</div>
        </div>
      `
    },
    children() {
      const userExtendThree = this.treeData.userExtendThree
      if (userExtendThree) {
        return [userExtendThree]
      } else {
        return []
      }
    },
    hasChildren() {
      return this.children.length > 0
    }
  },
  methods: {
    toggle() {
      if (this.hasChildren) {
        this.isOpen = !this.isOpen
      }
    }
  }
}
</script>

<style lang="scss" scoped>
.tree {
  font-size: 16px;

  .node {
    position: relative;
    display: inline-block;
    margin-right: 10px;
    padding: 5px;
    cursor: pointer;

    &__content {
      display: flex;
      align-items: center;
    }

    &__circle {
      width: 20px;
      height: 20px;
      border-radius: 50%;
      background-color: orange;
      border: 1px solid red;
      margin-right: 10px;
    }

    &__label {
      display: flex;
      flex-direction: column;
      justify-content: center;
      color: red;
      font-weight: bold;
    }

    &__id {
      margin-bottom: 5px;
    }

    &__extends {
      display: flex;
      flex-direction: column;
    }

    &__extend {
      margin: 5px 0;
    }

    &--has-children {
      &::before {
        content: '';
        position: absolute;
        left: -15px;
        top: 50%;
        transform: translateY(-50%);
        width: 15px;
        height: 1px;
        background-color: red;
      }
    }

    &__children {
      margin-left: 20px;
    }
  }
}
</style>

你可以将这些代码复制到你的组件中，然后在需要使用的地方引入即可。