element-ui的气泡确认框

 <el-popconfirm title="这是一段内容确定删除吗？" style="margin-left:10px;" @onConfirm="del(scope.row)">
                                <el-button
                                    type="primary"
                                    slot="reference"
                                >删除</el-button>
                            </el-popconfirm>