>[danger] 友情提示：構建器目前只支持HisiPHP Pro版本（[我要升級](https://www.hisiphp.com/authorize.html)） 由于layui自帶的下拉框功能有限，無法滿足更多的業務需求，應大家的要求引入了layui的擴展庫 [xmSelect](https://gitee.com/maplemei/xm-select?from=hisiphp)，此擴展庫功能強大，能滿足絕大多數的業務要求。 ## 下拉框增強版（select+、xmselect） | 參數 | 類型 | 必須 | 默認 | 說明 | --- | --- | --- | --- | --- | | type | string | Y | | 固定值：select+ | | name | string | Y | | 字段名稱 | | title | string | Y | | 標題 | | options | array | Y | | 配置參數，[詳細配置](https://maplemei.gitee.io/xm-select/#/component/options](https://maplemei.gitee.io/xm-select/#/component/options?from=hisiphp)) | | grid | Array | N | [12, 12, 12, 12] | [柵格布局](柵格布局.md)| | tips | string | N | | 提示說明 |  >[]完整示例代碼： ``` $assign['buildForm']['items'] = [ [ 'type' => 'select+', 'title' => '下拉框增強版', 'name' => 'area', 'options' => [ 'autoRow' => true, 'filterable' => true, 'name' => 'select_plus', 'tree' => [ 'show' => true, 'showFolderIcon' => true, 'showLine' => true, 'indent' => 20, ], 'data' => [ [ 'value' => 1, 'name' => '廣東', 'children' => [ [ 'value' => 11, 'name' => '廣州', 'children' => [ [ 'value' => 111, 'name' => '白云區', ], [ 'value' => 112, 'name' => '荔灣區', ], [ 'value' => 113, 'name' => '天河區', ] ], ], [ 'value' => 12, 'name' => '深圳', ], [ 'value' => 13, 'name' => '佛山', ], ], ], [ 'value' => 2, 'name' => '北京', 'children' => [ [ 'value' => 22, 'name' => '朝陽區', ], ], ], [ 'value' => 3, 'name' => '上海', ], ], ], 'tips' => '這是一個下拉框', ], // 更多表單項.... ]; $this->assign($assign); ```