实现页面样式：

使用vue2-org-tree插件实现

1.下载
npm i vue2-org-tree
npm install --save-dev less less-loader
下载less防止样式报错
2.引用
main.js中：

import Vue2OrgTree from 'vue2-org-tree'
import 'vue2-org-tree/dist/style.css'

Vue.use(Vue2OrgTree)

3.在使用的vue文件中

      <vue2-org-tree :data="data"   label-class-name="orglabel"  />

 data: {
        id: 0,
        label: 'XXX科技有限公司',
        children: [
          {
            id: 2,
            label: '产品研发部',
            children: [
              {
                id: 5,
                label: '研发-前端',
              },
              {
                id: 6,
                label: '研发-后端',
              },
              {
                id: 9,
                label: 'UI设计',
              },
              {
                id: 10,
                label: '产品经理',
              },
            ],
          },
          {
            id: 3,
            label: '销售部',
            children: [
              {
                id: 7,
                label: '销售一部',
              },
              {
                id: 8,
                label: '销售二部',
              },
            ],
          },
          {
            id: 4,
            label: '财务部',
          },
        ],
      },

4.自定义样式：
上部分html中使用了orglabel 这个类名修改组织架构图样式
需要注意的点：样式不能在当前组件中style scoped设置下生效
另外：需要引入less文件确定整个树的样式，否则不会出现组织架构的树形样式
在使用到vue2-org-tree的vue文件引入@import ‘@/assets/css/org-tree.less’;

less文件内容：

.org-tree-container {
    display: inline-block;
    padding: 15px;
   
    text-align: center;
   
  }
  
  .org-tree {
    // display: inline-block;
    display: table;
    text-align: center;
  
    &:before, &:after {
      content: '';
      display: table;
    }
  
    &:after {
      clear: both;
    }
  }
  
  .org-tree-node,
  .org-tree-node-children {
    position: relative;
    margin: 0;
    padding: 0;
    list-style-type: none;
  
    &:before, &:after {
      transition: all .35s;
    }
  }
  .org-tree-node-label {
    position: relative;
    display: inline-block;
  
    .org-tree-node-label-inner {
      text-align: center;
      border-radius: 3px;
     
      box-shadow: 0 1px 5px rgba(0, 0, 0, .15);
    }
  }
  .org-tree-node-btn {
    position: absolute;
    top: 100%;
    left: 50%;
    width: 20px;
    height: 20px;
    z-index: 10;
    margin-left: -11px;
    margin-top: 9px;
    background-color: #fff;
    border: 1px solid #ccc;
    border-radius: 50%;
    box-shadow: 0 0 2px rgba(0, 0, 0, .15);
    cursor: pointer;
    transition: all .35s ease;
  
    &:hover {
      background-color: #e7e8e9;
      transform: scale(1.15);
    }
  
    &:before, &:after {
      content: '';
      position: absolute;
    }
  
    &:before {
      top: 50%;
      left: 4px;
      right: 4px;
      height: 0;
      border-top: 1px solid #ccc;
    }
  
    &:after {
      top: 4px;
      left: 50%;
      bottom: 4px;
      width: 0;
      border-left: 1px solid #ccc;
    }
  
    &.expanded:after {
      border: none;
    }
  }
  .org-tree-node {
    padding-top: 20px;
    display: table-cell;
    vertical-align: top;
  
    &.is-leaf, &.collapsed {
      padding-left: 10px;
      padding-right: 10px;
    }
  
    &:before, &:after {
      content: '';
      position: absolute;
      top: 0;
      left: 0;
      width: 50%;
      height: 19px;
    }
  
    &:after {
      left: 50%;
      border-left: 1px solid #ddd;
    }
  
    &:not(:first-child):before,
    &:not(:last-child):after {
      border-top: 1px solid #ddd;
    }
  
  }
  .collapsable .org-tree-node.collapsed {
    padding-bottom: 30px;
  
    .org-tree-node-label:after {
      content: '';
      position: absolute;
      top: 100%;
      left: 0;
      width: 50%;
      height: 20px;
      border-right: 1px solid #ddd;
    }
  }
  .org-tree > .org-tree-node {
    padding-top: 0;
  
    &:after {
      border-left: 0;
    }
  }
  .org-tree-node-children {
    padding-top: 20px;
    display: table;
  
    &:before {
      content: '';
      position: absolute;
      top: 0;
      left: 50%;
      width: 0;
      height: 20px;
      border-left: 1px solid #ddd;
    }
  
    &:after {
      content: '';
      display: table;
      clear: both;
    }
  }
  
  .horizontal {
    .org-tree-node {
      // display: flex;
      // flex-direction: row;
      // justify-content: flex-start;
      // align-items: center;
      display: table-cell;
      float: none;
      padding-top: 0;
      padding-left: 20px;
  
      &.is-leaf, &.collapsed {
        padding-top: 10px;
        padding-bottom: 10px;
      }
  
      &:before, &:after {
        width: 19px;
        height: 50%;
      }
  
      &:after {
        top: 50%;
        left: 0;
        border-left: 0;
      }
  
      &:only-child:before {
        top: 1px;
        border-bottom: 1px solid #ddd;
      }
  
      &:not(:first-child):before,
      &:not(:last-child):after {
        border-top: 0;
        border-left: 1px solid #ddd;
      }
  
      &:not(:only-child):after {
        border-top: 1px solid #ddd;
      }
  
      .org-tree-node-inner {
        display: table;
      }
  
    }
  
    .org-tree-node-label {
      display: table-cell;
      vertical-align: middle;
    }
  
    &.collapsable .org-tree-node.collapsed {
      padding-right: 30px;
  
      .org-tree-node-label:after {
        top: 0;
        left: 100%;
        width: 20px;
        height: 50%;
        border-right: 0;
        border-bottom: 1px solid #ddd;
      }
    }
  
    .org-tree-node-btn {
      top: 50%;
      left: 100%;
      margin-top: -11px;
      margin-left: 9px;
    }
  
    & > .org-tree-node:only-child:before {
      border-bottom: 0;
    }
  
    .org-tree-node-children {
      // display: flex;
      // flex-direction: column;
      // justify-content: center;
      // align-items: flex-start;
      display: table-cell;
      padding-top: 0;
      padding-left: 20px;
  
      &:before {
        top: 50%;
        left: 0;
        width: 20px;
        height: 0;
        border-left: 0;
        border-top: 1px solid #ddd;
      }
  
      &:after {
        display: none;
      }
  
      & > .org-tree-node {
        display: block;
      }
    }
  }
  

以上可以根据实际的情况进行修改，本样式比较符合上图的组织架构显示图片。

另外本插件还有默认展开，点击节点等相关配置。
另附上vue2-org-tree的git地址