ant-design-vue/components/table/demo/expand.md

<cn>
#### 可展开
当表格内容较多不能一次性完全展示时。
</cn>

<us>
#### Expandable Row
When there's too much information to show and the table can't display all at once.
</us>

```tpl
<template>
  <a-table :columns="columns" :dataSource="data">
    <a slot="action" slot-scope="text" href="javascript:;">Delete</a>
    <p slot="expandedRowRender" slot-scope="record" style="margin: 0">{{record.description}}</p>
  </a-table>
</template>
<script>
  const columns = [
    { title: 'Name', dataIndex: 'name', key: 'name' },
    { title: 'Age', dataIndex: 'age', key: 'age' },
    { title: 'Address', dataIndex: 'address', key: 'address' },
    { title: 'Action', dataIndex: '', key: 'x', scopedSlots: { customRender: 'action' } },
  ];

  const data = [
    {
      key: 1,
      name: 'John Brown',
      age: 32,
      address: 'New York No. 1 Lake Park',
      description: 'My name is John Brown, I am 32 years old, living in New York No. 1 Lake Park.',
    },
    {
      key: 2,
      name: 'Jim Green',
      age: 42,
      address: 'London No. 1 Lake Park',
      description: 'My name is Jim Green, I am 42 years old, living in London No. 1 Lake Park.',
    },
    {
      key: 3,
      name: 'Joe Black',
      age: 32,
      address: 'Sidney No. 1 Lake Park',
      description: 'My name is Joe Black, I am 32 years old, living in Sidney No. 1 Lake Park.',
    },
  ];

  export default {
    data() {
      return {
        data,
        columns,
      };
    },
  };
</script>
```