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pages/gpa/gpa.js

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+// pages/gpa/gpa.js
+const { calculateGPA, showSuccess, showError } = require('../../utils/util.js')
+const learningTracker = require('../../utils/learningTracker.js')
+
+Page({
+  data: {
+    courses: [],
+    courseName: '',
+    courseScore: '',
+    courseCredit: '',
+    totalGPA: 0,
+    totalCredits: 0
+  },
+
+  onLoad() {
+    this.loadCourses()
+  },
+
+  onShow() {
+    // 开始跟踪学习时间
+    learningTracker.onPageShow('tools')
+  },
+
+  onHide() {
+    // 停止跟踪学习时间
+    learningTracker.onPageHide()
+  },
+
+  onUnload() {
+    // 记录学习时长
+    learningTracker.onPageUnload()
+  },
+
+  // 加载已保存的课程
+  loadCourses() {
+    const courses = wx.getStorageSync('gpaCourses') || []
+    this.setData({ courses })
+    this.calculateTotal()
+  },
+
+  // 课程名称输入
+  onNameInput(e) {
+    this.setData({ courseName: e.detail.value })
+  },
+
+  // 成绩输入
+  onScoreInput(e) {
+    this.setData({ courseScore: e.detail.value })
+  },
+
+  // 学分输入
+  onCreditInput(e) {
+    this.setData({ courseCredit: e.detail.value })
+  },
+
+  // 添加课程
+  onAddCourse() {
+    const { courseName, courseScore, courseCredit, courses } = this.data
+    
+    if (!courseName.trim()) {
+      showError('请输入课程名称')
+      return
+    }
+    
+    const score = parseFloat(courseScore)
+    const credit = parseFloat(courseCredit)
+    
+    if (isNaN(score) || score < 0 || score > 100) {
+      showError('请输入有效的成绩（0-100）')
+      return
+    }
+    
+    if (isNaN(credit) || credit <= 0) {
+      showError('请输入有效的学分')
+      return
+    }
+    
+    const newCourse = {
+      id: Date.now(),
+      name: courseName.trim(),
+      score: score,
+      credit: credit
+    }
+    
+    courses.push(newCourse)
+    wx.setStorageSync('gpaCourses', courses)
+    
+    this.setData({
+      courses,
+      courseName: '',
+      courseScore: '',
+      courseCredit: ''
+    })
+    
+    this.calculateTotal()
+    showSuccess('添加成功')
+  },
+
+  // 删除课程
+  onDeleteCourse(e) {
+    const { id } = e.currentTarget.dataset
+    
+    wx.showModal({
+      title: '确认删除',
+      content: '确定要删除这门课程吗？',
+      success: (res) => {
+        if (res.confirm) {
+          let { courses } = this.data
+          courses = courses.filter(course => course.id !== id)
+          wx.setStorageSync('gpaCourses', courses)
+          
+          this.setData({ courses })
+          this.calculateTotal()
+          showSuccess('删除成功')
+        }
+      }
+    })
+  },
+
+  // 计算总GPA
+  calculateTotal() {
+    const { courses } = this.data
+    const gpa = calculateGPA(courses)
+    const totalCredits = courses.reduce((sum, course) => sum + course.credit, 0)
+    
+    this.setData({
+      totalGPA: gpa,
+      totalCredits: totalCredits
+    })
+  },
+
+  // 清空所有
+  onClearAll() {
+    wx.showModal({
+      title: '确认清空',
+      content: '确定要清空所有课程吗？',
+      success: (res) => {
+        if (res.confirm) {
+          wx.removeStorageSync('gpaCourses')
+          this.setData({
+            courses: [],
+            totalGPA: 0,
+            totalCredits: 0
+          })
+          showSuccess('已清空')
+        }
+      }
+    })
+  }
+})

pages/gpa/gpa.json

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+{
+  "navigationBarTitleText": "GPA计算器"
+}

pages/gpa/gpa.wxml

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+<!--pages/gpa/gpa.wxml-->
+<view class="container">
+  <!-- GPA显示卡片 -->
+  <view class="gpa-card">
+    <view class="gpa-label">当前GPA</view>
+    <view class="gpa-value">{{totalGPA}}</view>
+    <view class="credits-info">总学分：{{totalCredits}}</view>
+  </view>
+
+  <!-- 添加课程表单 -->
+  <view class="form-card">
+    <view class="form-title">添加课程</view>
+    
+    <view class="form-row">
+      <input 
+        class="form-input"
+        placeholder="课程名称"
+        value="{{courseName}}"
+        bindinput="onNameInput"
+      />
+    </view>
+    
+    <view class="form-row-group">
+      <view class="form-row half">
+        <input 
+          class="form-input"
+          type="digit"
+          placeholder="成绩"
+          value="{{courseScore}}"
+          bindinput="onScoreInput"
+        />
+      </view>
+      <view class="form-row half">
+        <input 
+          class="form-input"
+          type="digit"
+          placeholder="学分"
+          value="{{courseCredit}}"
+          bindinput="onCreditInput"
+        />
+      </view>
+    </view>
+    
+    <button class="add-btn" bindtap="onAddCourse">添加课程</button>
+  </view>
+
+  <!-- 课程列表 -->
+  <view class="courses-section" wx:if="{{courses.length > 0}}">
+    <view class="section-header">
+      <text class="section-title">课程列表</text>
+      <text class="clear-btn" bindtap="onClearAll">清空</text>
+    </view>
+    
+    <view class="course-item" wx:for="{{courses}}" wx:key="id">
+      <view class="course-info">
+        <view class="course-name">{{item.name}}</view>
+        <view class="course-details">
+          <text class="detail-item">成绩：{{item.score}}</text>
+          <text class="detail-item">学分：{{item.credit}}</text>
+        </view>
+      </view>
+      <view 
+        class="delete-btn"
+        data-id="{{item.id}}"
+        bindtap="onDeleteCourse"
+      >
+        🗑️
+      </view>
+    </view>
+  </view>
+
+</view>

pages/gpa/gpa.wxss

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+/* pages/gpa/gpa.wxss */
+.container {
+  min-height: 100vh;
+  background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
+  padding: 30rpx;
+  animation: fadeIn 0.5s ease-out;
+}
+
+/* GPA卡片 */
+.gpa-card {
+  background: linear-gradient(135deg, #FF6B6B 0%, #FF8E8E 100%);
+  border-radius: 24rpx;
+  padding: 50rpx 30rpx;
+  text-align: center;
+  color: #ffffff;
+  margin-bottom: 30rpx;
+  box-shadow: 0 12rpx 32rpx rgba(255, 107, 107, 0.4);
+  animation: scaleIn 0.6s cubic-bezier(0.4, 0, 0.2, 1);
+  position: relative;
+  overflow: hidden;
+}
+
+.gpa-card::before {
+  content: '';
+  position: absolute;
+  top: -50%;
+  left: -50%;
+  width: 200%;
+  height: 200%;
+  background: radial-gradient(circle, rgba(255, 255, 255, 0.15) 0%, transparent 70%);
+  animation: float 6s ease-in-out infinite;
+}
+
+@keyframes float {
+  0%, 100% { transform: translate(0, 0); }
+  50% { transform: translate(30rpx, 30rpx); }
+}
+
+.gpa-label {
+  font-size: 28rpx;
+  opacity: 0.95;
+  margin-bottom: 15rpx;
+  position: relative;
+  letter-spacing: 2rpx;
+}
+
+.gpa-value {
+  font-size: 96rpx;
+  font-weight: bold;
+  margin-bottom: 15rpx;
+  position: relative;
+  text-shadow: 0 4rpx 12rpx rgba(0, 0, 0, 0.2);
+  animation: pulse 2s ease-in-out infinite;
+}
+
+.credits-info {
+  font-size: 26rpx;
+  opacity: 0.9;
+  position: relative;
+}
+
+/* 表单卡片 */
+.form-card {
+  background: linear-gradient(135deg, #ffffff 0%, #fafbfc 100%);
+  border-radius: 20rpx;
+  padding: 35rpx;
+  margin-bottom: 30rpx;
+  box-shadow: 0 8rpx 24rpx rgba(0, 0, 0, 0.08);
+  animation: slideInUp 0.6s ease-out 0.2s both;
+}
+
+.form-title {
+  font-size: 34rpx;
+  font-weight: bold;
+  color: #333333;
+  margin-bottom: 30rpx;
+  position: relative;
+  padding-bottom: 15rpx;
+}
+
+.form-title::after {
+  content: '';
+  position: absolute;
+  bottom: 0;
+  left: 0;
+  width: 60rpx;
+  height: 4rpx;
+  background: linear-gradient(to right, #FF6B6B, #FF8E8E);
+  border-radius: 2rpx;
+}
+
+.form-row {
+  margin-bottom: 25rpx;
+}
+
+.form-row-group {
+  display: flex;
+  gap: 20rpx;
+  margin-bottom: 25rpx;
+}
+
+.form-row.half {
+  flex: 1;
+  margin-bottom: 0;
+}
+
+.form-input {
+  width: 100%;
+  height: 88rpx;
+  padding: 0 28rpx;
+  background-color: #f8f9fa;
+  border: 2rpx solid #e9ecef;
+  border-radius: 16rpx;
+  font-size: 28rpx;
+  box-sizing: border-box;
+  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
+}
+
+.form-input:focus {
+  background-color: #ffffff;
+  border-color: #FF6B6B;
+  box-shadow: 0 0 0 4rpx rgba(255, 107, 107, 0.1);
+}
+
+.add-btn {
+  width: 100%;
+  height: 96rpx;
+  line-height: 96rpx;
+  background: linear-gradient(135deg, #FF6B6B 0%, #FF8E8E 100%);
+  color: #ffffff;
+  border-radius: 48rpx;
+  font-size: 32rpx;
+  font-weight: bold;
+  box-shadow: 0 8rpx 20rpx rgba(255, 107, 107, 0.3);
+  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
+}
+
+.add-btn:active {
+  transform: scale(0.98);
+  box-shadow: 0 4rpx 12rpx rgba(255, 107, 107, 0.3);
+}
+
+/* 课程列表 */
+.courses-section {
+  background: linear-gradient(135deg, #ffffff 0%, #fafbfc 100%);
+  border-radius: 20rpx;
+  padding: 35rpx;
+  margin-bottom: 30rpx;
+  box-shadow: 0 8rpx 24rpx rgba(0, 0, 0, 0.08);
+  animation: slideInUp 0.6s ease-out 0.3s both;
+}
+
+.section-header {
+  display: flex;
+  justify-content: space-between;
+  align-items: center;
+  margin-bottom: 30rpx;
+}
+
+.section-title {
+  font-size: 34rpx;
+  font-weight: bold;
+  color: #333333;
+  position: relative;
+  padding-bottom: 10rpx;
+}
+
+.section-title::after {
+  content: '';
+  position: absolute;
+  bottom: 0;
+  left: 0;
+  width: 50rpx;
+  height: 3rpx;
+  background: linear-gradient(to right, #FF6B6B, #FF8E8E);
+  border-radius: 2rpx;
+}
+
+.clear-btn {
+  font-size: 26rpx;
+  color: #FF6B6B;
+  padding: 12rpx 24rpx;
+  background-color: rgba(255, 107, 107, 0.1);
+  border-radius: 20rpx;
+  transition: all 0.3s ease;
+}
+
+.clear-btn:active {
+  background-color: rgba(255, 107, 107, 0.2);
+  transform: scale(0.95);
+}
+
+.course-item {
+  display: flex;
+  align-items: center;
+  padding: 30rpx;
+  background: linear-gradient(135deg, #f8f9fa 0%, #ffffff 100%);
+  border-radius: 16rpx;
+  margin-bottom: 20rpx;
+  box-shadow: 0 4rpx 12rpx rgba(0, 0, 0, 0.06);
+  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
+  position: relative;
+  overflow: hidden;
+  animation: slideInLeft 0.5s ease-out;
+}
+
+.course-item::before {
+  content: '';
+  position: absolute;
+  left: 0;
+  top: 0;
+  bottom: 0;
+  width: 6rpx;
+  background: linear-gradient(to bottom, #FF6B6B, #FF8E8E);
+  transform: scaleY(0);
+  transition: transform 0.3s ease;
+}
+
+.course-item:active::before {
+  transform: scaleY(1);
+}
+
+.course-item:active {
+  transform: translateX(8rpx);
+  box-shadow: 0 6rpx 16rpx rgba(0, 0, 0, 0.1);
+}
+
+.course-item:last-child {
+  margin-bottom: 0;
+}
+
+.course-item:nth-child(1) { animation-delay: 0.1s; }
+.course-item:nth-child(2) { animation-delay: 0.15s; }
+.course-item:nth-child(3) { animation-delay: 0.2s; }
+.course-item:nth-child(4) { animation-delay: 0.25s; }
+.course-item:nth-child(5) { animation-delay: 0.3s; }
+
+.course-info {
+  flex: 1;
+}
+
+.course-name {
+  font-size: 32rpx;
+  font-weight: bold;
+  color: #333333;
+  margin-bottom: 12rpx;
+}
+
+.course-details {
+  display: flex;
+  gap: 30rpx;
+}
+
+.detail-item {
+  font-size: 24rpx;
+  color: #666666;
+  padding: 6rpx 16rpx;
+  background-color: rgba(255, 107, 107, 0.08);
+  border-radius: 12rpx;
+}
+
+.delete-btn {
+  font-size: 44rpx;
+  padding: 12rpx;
+  color: #ff4757;
+  transition: all 0.3s ease;
+}
+
+.delete-btn:active {
+  transform: scale(1.2) rotate(90deg);
+  color: #ff6b6b;
+}
+
+/* 提示卡片 */
+.tips-card {
+  background: linear-gradient(135deg, #ffffff 0%, #fafbfc 100%);
+  border-radius: 20rpx;
+  padding: 35rpx;
+  box-shadow: 0 8rpx 24rpx rgba(0, 0, 0, 0.08);
+  animation: slideInUp 0.6s ease-out 0.4s both;
+}
+
+.tips-title {
+  font-size: 30rpx;
+  font-weight: bold;
+  color: #333333;
+  margin-bottom: 24rpx;
+  position: relative;
+  padding-left: 20rpx;
+}
+
+.tips-title::before {
+  content: '💡';
+  position: absolute;
+  left: 0;
+  top: -2rpx;
+  font-size: 32rpx;
+}
+
+.tips-content {
+  font-size: 26rpx;
+  color: #666666;
+  line-height: 2.2;
+  padding-left: 20rpx;
+}
+
+.tip-item {
+  margin-bottom: 12rpx;
+  position: relative;
+  padding-left: 24rpx;
+  animation: fadeIn 0.8s ease-out;
+}
+
+.tip-item::before {
+  content: '•';
+  position: absolute;
+  left: 0;
+  color: #FF6B6B;
+  font-weight: bold;
+  font-size: 32rpx;
+  line-height: 1.5;
+}
+
+.tip-item:nth-child(1) { animation-delay: 0.5s; }
+.tip-item:nth-child(2) { animation-delay: 0.6s; }
+.tip-item:nth-child(3) { animation-delay: 0.7s; }
+.tip-item:nth-child(4) { animation-delay: 0.8s; }
+.tip-item:nth-child(5) { animation-delay: 0.9s; }