Component({   properties: {     countdown: {       type: Object,       value: null,       observer(newVal, oldVal) {                   if (oldVal && newVal) {           // 先保存前一个值用于动画           const { years, months, days, hours, minutes, seconds } = oldVal;                      // 更新 prev 数据           this.setData({             prevYears: years,             prevMonths: months,             prevDays: days,             prevHours: hours,             prevMinutes: minutes,             prevSeconds: seconds   // 确保这里是从 oldVal 中获取的           });            // 更新当前显示的值           this.setData({              currentYears: newVal.years,              currentMonths: newVal.months,              currentDays: newVal.days,              currentHours: newVal.hours,              currentMinutes: newVal.minutes,              currentSeconds: newVal.seconds            });           // 触发翻页动画           if (newVal.years !== oldVal.years) this.flip('Years');           if (newVal.months !== oldVal.months) this.flip('Months');           if (newVal.days !== oldVal.days) this.flip('Days');           if (newVal.hours !== oldVal.hours) this.flip('Hours');           if (newVal.minutes !== oldVal.minutes) this.flip('Minutes');           if (newVal.seconds !== oldVal.seconds) this.flip('Seconds');          // 更新当前显示的值                           }       }              }   },   data: {     flipYears: false,     flipMonths: false,     flipDays: false,     flipHours: false,     flipMinutes: false,     flipSeconds: false,     prevYears: null,     prevMonths: null,     prevDays: null,     prevHours: null,     prevMinutes: null,     prevSeconds: null,     currentYears: null,     currentMonths: null,     currentDays: null,     currentHours: null,     currentMinutes: null,     currentSeconds: null   },   methods: {     flip(unit) {       const key = `flip${unit}`;       this.setData({         [key]: true       });              setTimeout(() => {         this.setData({           [key]: false         });       }, 600);     },        } });

一开始提示 Error: app,json: ["tabBar"][1]["pagePath"]: "packageA/pages/about/about" need in ["pages"] File: app.json （您遇到的错误提示表明，在 [代码]app.json[代码] 文件的 [代码]tabBar[代码] 配置中指定的页面路径 [代码]"packageA/pages/about/about"[代码] 不在 [代码]pages[代码] 数组中定义。具体来说，[代码]tabBar[代码] 中引用的页面路径必须是在 [代码]app.json[代码] 文件的 [代码]pages[代码] 数组中声明过的路径。） 我就加了声明 subpackages，但是又出现提示 Error: app,json: ["pages"][1]: "packageA/pages/about/about" ShouId not exist in ["subPackages"][0]File: appjson 初学小白，请教，谢谢！ 代码如下： {   "pages": [     "pages/index/index"   ],   "subpackages": [     {       "root": "packageA",       "pages": [         "pages/preview/preview",         "pages/about/about"       ]     }   ], "tabBar": {     "color": "#999999",     "selectedColor": "#07C160",     "backgroundColor": "#ffffff",     "borderStyle": "black",     "list": [       {         "pagePath": "pages/index/index",         "text": "首页",         "iconPath": "images/home.png",         "selectedIconPath": "images/home-active.png"       },       {         "pagePath": "packageA/pages/about/about",         "text": "关于",         "iconPath": "images/about.png",         "selectedIconPath": "images/about-active.png"       }     ]   },

编程学习，尝试使用cursor写代码写本地小程序（不使用云开发）输出带图片的表格，这样可以吗？ 老是会报错，报错信息如下 导出错误： Error: module 'miniprogram_npm/xlsx/stream.js' is not defined, require args is 'stream' at C (wxmodule.patch.js?t=wechat&s=1736591196863&v=2.19.4:1) at n (wxmodule.patch.js?t=wechat&s=1736591196863&v=2.19.4:1) at __REQUIRE__ (index.js:2) at index.js:809 at make_xlsx_lib (xlsx.js:24476) at Object.func (xlsx.js:24481) at __REQUIRE__ (index.js:2) at index.js:812 at index.js:812 at C (wxmodule.patch.js?t=wechat&s=1736591196863&v=2.19.4:1)(env: Windows,mp,1.06.2412040; lib: 2.19.4)