优化小程序版本更新检测逻辑，增强用户体验。新增扫码功能，支持用户通过扫一扫获取信息并展示解析结果，提升交互性。更新样式以适应新功能，确保界面友好。

miniprogram/pages/my/my.js

@@ -40,6 +40,7 @@ Page({
     
     // 菜单列表
     menuList: [
+      { id: 'scan', title: '扫一扫', icon: '📷', iconBg: 'gray' },
       { id: 'orders', title: '我的订单', icon: '📦', count: 0 },
       { id: 'referral', title: '推广中心', icon: '🎁', iconBg: 'gold', badge: '90%佣金' },
       { id: 'withdrawRecords', title: '提现记录', icon: '📋', iconBg: 'gray' },
@@ -64,7 +65,11 @@ Page({
 
     // 修改昵称弹窗
     showNicknameModal: false,
-    editingNickname: ''
+    editingNickname: '',
+
+    // 扫一扫结果弹窗
+    showScanResultModal: false,
+    scanResult: ''
   },
 
   onLoad() {
@@ -608,12 +613,17 @@ Page({
   // 点击菜单
   handleMenuTap(e) {
     const id = e.currentTarget.dataset.id
-    
+
+    if (id === 'scan') {
+      this.doScanCode()
+      return
+    }
+
     if (!this.data.isLoggedIn && id !== 'about') {
       this.showLogin()
       return
     }
-    
+
     const routes = {
       orders: '/pages/purchases/purchases',
       referral: '/pages/referral/referral',
@@ -621,12 +631,47 @@ Page({
       about: '/pages/about/about',
       settings: '/pages/settings/settings'
     }
-    
+
     if (routes[id]) {
       wx.navigateTo({ url: routes[id] })
     }
   },
 
+  // 扫一扫：调起扫码，展示解析值
+  doScanCode() {
+    wx.scanCode({
+      onlyFromCamera: false,
+      scanType: ['qrCode', 'barCode'],
+      success: (res) => {
+        const result = res.result || ''
+        this.setData({
+          showScanResultModal: true,
+          scanResult: result
+        })
+      },
+      fail: (err) => {
+        if (err.errMsg && !err.errMsg.includes('cancel')) {
+          wx.showToast({ title: '扫码失败', icon: 'none' })
+        }
+      }
+    })
+  },
+
+  // 关闭扫码结果弹窗
+  closeScanResultModal() {
+    this.setData({ showScanResultModal: false, scanResult: '' })
+  },
+
+  // 复制扫码结果
+  copyScanResult() {
+    const text = this.data.scanResult || ''
+    if (!text) return
+    wx.setClipboardData({
+      data: text,
+      success: () => wx.showToast({ title: '已复制', icon: 'success' })
+    })
+  },
+
   goToRead(e) {
     const id = e.currentTarget.dataset.id
     const mid = e.currentTarget.dataset.mid