Refactor Date Calculator UI to Morandi theme and fix logic; fix Index page interaction

codes/minipro/calculation/miniprogram/pages/calculator/calculator.ts

@@ -6,14 +6,25 @@ Page({
     operator: null as string | null,
     firstOperand: null as number | null,
     waitingForSecondOperand: false,
-    isScientific: false
+    isScientific: false,
+    showHistory: false,
+    historyList: [] as Array<{expression: string, result: string}>
   },
 
   onLoad() {
+    // 从本地存储恢复历史记录
+    const saved = wx.getStorageSync('CALC_HISTORY');
+    if (saved && Array.isArray(saved)) {
+      this.setData({ historyList: saved });
+    }
   },
 
   vibrate() {
-    // wx.vibrateShort({ type: 'light' });
+    wx.vibrateShort({ type: 'light' }).catch(() => {});
+  },
+
+  preventTouchMove() {
+    // 阻止历史面板底层滚动
   },
 
   toggleMode() {
@@ -157,6 +168,8 @@ Page({
         history: desc,
         waitingForSecondOperand: true // 计算完后，下次输入数字是新数字
     });
+
+    this.addToHistory(desc, String(formatted));
   },
 
   onOperator(e: any) {
@@ -201,6 +214,7 @@ Page({
 
     if (operator && firstOperand != null) {
       const result = this.performCalculation(operator, firstOperand, inputValue);
+      const expression = `${firstOperand} ${operator} ${inputValue}`;
       
       this.setData({
         displayValue: String(result),
@@ -209,6 +223,8 @@ Page({
         waitingForSecondOperand: true,
         history: `${firstOperand} ${operator} ${inputValue} =`
       });
+
+      this.addToHistory(expression, String(result));
     }
   },
 
@@ -223,5 +239,42 @@ Page({
       }
       const precision = 10000000000;
       return Math.round(result * precision) / precision;
+  },
+
+  // 历史记录相关方法
+  addToHistory(expression: string, result: string) {
+    const list = this.data.historyList.slice();
+    list.unshift({ expression, result });
+    // 最多保留50条
+    if (list.length > 50) list.length = 50;
+    this.setData({ historyList: list });
+    wx.setStorageSync('CALC_HISTORY', list);
+  },
+
+  toggleHistory() {
+    this.setData({ showHistory: !this.data.showHistory });
+  },
+
+  clearHistory() {
+    this.setData({ historyList: [] });
+    wx.removeStorageSync('CALC_HISTORY');
+  },
+
+  useHistoryResult(e: any) {
+    const result = e.currentTarget.dataset.result;
+    this.setData({
+      displayValue: String(result),
+      showHistory: false,
+      waitingForSecondOperand: true
+    });
+  },
+
+  copyResult() {
+    wx.setClipboardData({
+      data: this.data.displayValue,
+      success: () => {
+        wx.showToast({ title: '已复制', icon: 'success', duration: 1000 });
+      }
+    });
   }
 })