feat:代码优化

miniprogram/mathPages/addition/addition.wxml

@@ -11,58 +11,19 @@
                 style="width:{{boxWidth}}px;height:{{boxHeight}}px" />
         </view>
 
-        <!-- 随机生成按钮 -->
-        <view class="random-button-area">
-            <view class="type-selector" bind:tap="onShowTypeSelector">
-                <text class="type-selector-text">{{currentTypeName}}</text>
-                <text class="type-selector-arrow">▼</text>
-            </view>
-            <toy-button
-                class="random-button"
-                type="primary"
-                bind:click="onRandom"
-                width="100%"
-                height="80rpx"
-                icon="refresh"
-                icon-class-prefix="toy-icon">
-                随机生成
-            </toy-button>
-        </view>
-        <van-action-sheet
-            show="{{showTypeSelector}}"
-            actions="{{typeActions}}"
+        <!-- 类型选择器和随机生成按钮 -->
+        <math-type-selector
+            current-type-name="{{currentTypeName}}"
+            type-actions="{{typeActions}}"
             bind:select="onSelectType"
-            bind:cancel="onCloseTypeSelector"
-            bind:close="onCloseTypeSelector"
-            cancel-text="取消"
-            custom-class="custom-action-sheet" />
+            bind:random="onRandom" />
     </view>
     <view class="empty"></view>
 </view>
-<view class="bottom-btn-box">
-    <toy-button
-        openType="share"
-        type="green"
-        flat="{{true}}"
-        bind:click="onShareAppMessage"
-        width="220rpx"
-        height="80rpx"
-        icon="wechat"
-        icon-class-prefix="toy-icon">
-        分享
-    </toy-button>
-    <toy-button
-        type="primary"
-        flat="{{true}}"
-        bind:click="exportToPrint"
-        width="420rpx"
-        height="80rpx"
-        disabled="{{!hasContent}}"
-        icon="download"
-        icon-class-prefix="toy-icon">
-        下载打印
-    </toy-button>
-</view>
+<math-bottom-buttons
+    disabled="{{!hasContent}}"
+    bind:share="onShareAppMessage"
+    bind:export="exportToPrint" />
 <share-guide-popup
     show="{{showShareDialog}}"
     bind:onClose="onCloseShareDialog"