` <div id="tableTree" style="padding: 10px"> <dragTreeTable ref="table" :data="treeTableData" :onDrag="onTreeDataChange" style="width: 100%;" fixed> <template #selection="{row}"> <a>添加子节点{{row}}</a> </template> </dragTreeTable> </div>` ` columns:[{ title: "<span style='font-weight:bold;font-size:14px'>文件名</span>", type: "selection", flex: 1, titleAlign: "left", align: "left" }]` 代码是这样的