feat:代码优化

miniprogram/mathPages/addition/addition.ts

@@ -27,7 +27,6 @@ Page({
         functionId: '',
         hasContent: false,
         showShareDialog: false,
-        showTypeSelector: false,
         currentType: 'addition-5', // 'addition-5', 'addition-10', 'subtraction-10', 'addition-subtraction-10'
         currentTypeName: '5以内加法',
         typeActions: [
@@ -274,23 +273,12 @@ Page({
         }
     },
 
-    /** 显示类型选择器 */
-    onShowTypeSelector() {
-        this.setData({ showTypeSelector: true });
-    },
-
-    /** 关闭类型选择器 */
-    onCloseTypeSelector() {
-        this.setData({ showTypeSelector: false });
-    },
-
     /** 选择类型 */
     onSelectType(event: any) {
         const { name, value } = event.detail;
         this.setData({
             currentType: value,
             currentTypeName: name,
-            showTypeSelector: false,
         });
         // 重新生成数据
         this.onRandom();