## 树形展示

表格支持树形数据的展示

```json
{
    "body": [
        {
            "type": "container",
            "model": "treeModal",
            "data": {
                "dataSource": [{"key":1,"name":"John Brown sr.","age":60,"address":"New York No. 1 Lake Park","children":[{"key":11,"name":"John Brown","age":42,"address":"New York No. 2 Lake Park"},{"key":12,"name":"John Brown jr.","age":30,"address":"New York No. 3 Lake Park","children":[{"key":121,"name":"Jimmy Brown","age":16,"address":"New York No. 3 Lake Park"}]},{"key":13,"name":"Jim Green sr.","age":72,"address":"London No. 1 Lake Park","children":[{"key":131,"name":"Jim Green","age":42,"address":"London No. 2 Lake Park","children":[{"key":1311,"name":"Jim Green jr.","age":25,"address":"London No. 3 Lake Park"},{"key":1312,"name":"Jimmy Green sr.","age":18,"address":"London No. 4 Lake Park"}]}]}]},{"key":2,"name":"Joe Black","age":32,"address":"Sidney No. 1 Lake Park"}],
                "columns": [{"title":"Name","dataIndex":"name","key":"name"},{"title":"Age","dataIndex":"age","key":"age","width":"12%"},{"title":"Address","dataIndex":"address","width":"30%","key":"address"}]
            },
            "children": [
                {
                    "type": "table",
                    "columns": "#ES{$data.columns}",
                    "dataSource": "#ES{$data.dataSource}",
                    "rowKey": "key",
                    "expandedRowKeys": [1, 12]
                }
            ]
        }
    ]
}
```