设置ElementUI表格只能单选效果教程

thead .el-table-column--selection .cell{
    display: none;
}

<el-table
	ref="Table"
	:data="apprItemData"
	:header-cell-style="headClass"
             @selection-change="handleSelectionChange"
             row-key="apprItem"
             :tree-props="{children: 'children'}"
             height="420"
	border>
</el-table>

 handleSelectionChange(val){
	console.log("selection rows:"+val);
     if (val.length > 1) {
         this.$refs.Table.clearSelection()
         this.$refs.Table.toggleRowSelection(val.pop())
     }
}