const engagementModel = types.model('engagementModel', { equity_type: types.maybeNull(types.string), show: types.maybeNull(types.boolean), head_image:types.maybeNull(types.string), nick_name: types.maybeNull(types.string), phone: types.maybeNull(types.string), service_list: types.array(types.string), imageArray: types.array(imageArrayModel), }); const imageArrayModel = types.model('imageArrayModel', { head_image:types.maybeNull(types.string), nick_name: types.maybeNull(types.string), }); const HealthyShotStore = types .model('HealthyShotStore', { picUrlsArray: types.array(picUrlModel), indexs: types.number, handCustomerArray: types.array(handCustomerModel), engagementArray: types.array(engagementModel), selectIndex: types.number, checkDetailList: types.array(types.string), handCustomerFlag: types.string, })的这个types.array(imageArrayModel)为什么报错

[mobx-state-tree] Cannot modify 'engagementModel@engagementArray/2' the object is protected and can onlybe modified by using an action.这个报错const engagementModel = types.model('engagementModel', { equity_type: types.maybeNull(types.string), show: types.maybeNull(types.boolean), head_image: types.maybeNull(types.string), nick_name: types.maybeNull(types.string), phone: types.maybeNull(types.string), service_list: types.array(types.string), imageArray: types.array(types.late(() => imageArrayModel)), }); const imageArrayModel = types.model('imageArrayModel', { head_image: types.maybeNull(types.string), nick_name: types.maybeNull(types.string), }); const HealthyShotStore = types.model('HealthyShotStore', { picUrlsArray: types.array(picUrlModel), indexs: types.number, handCustomerArray: types.array(handCustomerModel), engagementArray: types.array(engagementModel), selectIndex: types.number, checkDetailList: types.array(types.string), handCustomerFlag: types.string, });那我要修改怎么改，

equity_type: types.maybeNull(types.string), show: types.maybeNull(types.boolean), head_image: types.maybeNull(types.string), nick_name: types.maybeNull(types.string), phone: types.maybeNull(types...

const processSaleOutBoundDetailArr = async (saleOutBoundArr, tokenData, accountData) => { let saleOutBoundDetailArr = [] if (saleOutBoundArr?.length > 0) { for (const item of saleOutBoundArr) { const saleOutBoundDetailRes = await getSaleOutBoundDetail( { id: item.id }, { "app-token": tokenData['app-token'], "X-GW-Router-Addr": accountData?.domain } ); if (saleOutBoundDetailRes.data.errcode === 0) { item.detailList = await processMaterial(item.id, saleOutBoundDetailRes.data.data.material_entity, tokenData, accountData) } saleOutBoundDetailArr.push(item) } } return saleOutBoundDetailArr } const processMaterial = async (orderId, materials, tokenData, accountData) => { let materialArr = [] if (materials && materials.length) { const materialIds = [...new Set(materials.map(item => item.material_id))]; const materialPromises = materialIds.map(id => { return getMaterialDetail({ id }, { "app-token": tokenData['app-token'], "X-GW-Router-Addr": accountData?.domain }); }); const materialDetails = await Promise.all(materialPromises); materialArr = materials.map(material => { const materialDetail = materialDetails.find(detail => detail.data.errcode === 0 && detail.data.data.id === material.material_id); if (materialDetail) { const meterailData = materialDetail.data.data; material.model = meterailData.model material.fetch_category_id = meterailData.fetch_category_id material.tax_rate = meterailData.tax_rate material.orderId = meterailData.orderId } return material; }); } return materialArr; }; 优化这段代码

material.model = meterailData.model; material.fetch_category_id = meterailData.fetch_category_id; material.tax_rate = meterailData.tax_rate; material.orderId = meterailData.orderId; } return ...

const cloud = require('wx-server-sdk') cloud.init({ env: cloud.DYNAMIC_CURRENT_ENV }) const db = cloud.database() const _ = db.command const col = db.collection('products') // 云函数入口函数 exports.main = async (event, context) => { console.log(event) let res = await db.collection('config').doc('prices').get() let p = res.data let ps const queryList = event.queryList; reslist = await col.where({ _id: _.in(queryList)}) .lookup({ // 连接查询 from: 'usersproducts', localField: '_id', foreignField: 'products_id', as: 'data' }) .limit(event.limit) .get() const list = reslist.data if (list.length === 0) { console.log('查询结果为空'); return; } const order = event.queryList.filter(id => list.some(item => item._id === id)); list.sort((a, b) => { const indexA = order.indexOf(a._id); const indexB = order.indexOf(b._id); return indexA - indexB; }); console.log(list); ps = list console.log(ps)这段代码存在报错，报错信息是：Error: cloud.callFunction:fail Error: errCode: -504002 functions execute fail | errMsg: TypeError: col.where(...).lookup is not a function。你能修复这个问题，并把正确的代码发给我

const cloud = require('wx-server-sdk') cloud.init({ env: cloud.DYNAMIC_CURRENT_ENV }) const db = cloud.database() const _ = db.command const col = db.collection('products') // 云函数入口函数 exports...

const types = this.typeOption.find(item => item.id === type)?.type

它的作用是，如果 typeOption 数组中存在 id 属性等于 type 的元素，则返回该元素的 type 属性值，否则返回 undefined。其中 find() 方法用于查找数组中符合条件的第一个元素。如果 typeOption 数组中...

function readExcel(file_obj){ var reader = new FileReader(); var file = file_obj.files[0]; reader.readAsBinaryString(file); reader.onload = function (e) { var data = e.target.result; var wb = XLSX.read(data, {type: 'binary'}); sheetName = wb.SheetNames[0] // 获取文档中第一个sheet页签的名字 sheets = wb.Sheets[sheetName] // 获sheet名页签下的数据 const length=XLSX.utils.sheet_to_json(sheets).length const rowIndex = 5; // 指定需要获取的行号 const columnIndex = 3; // 指定需要获取的列号 let columnDate=[];//列 let rowDate=[];// let date=[]; for(let index=columnIndex+1;index<=20;index++){ const cellAddress = XLSX.utils.encode_cell({ r: rowIndex - 1, c: index - 1 }); const cellValue = sheets[cellAddress] ? sheets[cellAddress].v : null; if(cellValue===null){ break }else{ columnDate.push({name:cellValue,index:index}) } } for(let index=rowIndex+1;index<=length;index++){ const cellAddress = XLSX.utils.encode_cell({ r: index - 1, c: columnIndex - 1 }); const cellValue = sheets[cellAddress] ? sheets[cellAddress].v : null; if(cellValue===null){ continue }else{ for(let i=0;i<=columnDate.length;i++){ let column=columnDate[i].index-1 console.log(columnDate[i].index) const cellAddress = XLSX.utils.encode_cell({ r: index - 1, c: column }); console.log(cellAddress) const cellValue = sheets[cellAddress] ? sheets[cellAddress].v : null; console.log(cellValue) date.push(cellValue) } rowDate.push({name:cellValue,index:index}) } } console.log(rowDate); const cellAddress = XLSX.utils.encode_cell({ r: rowIndex - 1, c: columnIndex - 1 }); const cellValue = wb.Sheets[sheetName][cellAddress].v; JSON.stringify(XLSX.utils.sheet_to_json(sheets)); //console.log(XLSX.utils.sheet_to_json(sheets)); // 返回sheet对象到控制台 }; }我这里哪里错了，怎么修改

var wb = XLSX.read(data, { type: 'binary' }); sheetName = wb.SheetNames[0]; sheets = wb.Sheets[sheetName]; const length = XLSX.utils.sheet_to_json(sheets).length; const rowIndex = 5; const ...

const comModules = import.meta.glob('.//index.vue') const _abvuePageList = Object.entries(comModules).map(([k, v]) => { const path = k.replace('./', '').replace('/index.vue', '') || '/' const name = path.split('/').filter(Boolean).join('-') || 'index' const component = comModules[k.replace('page.ts', 'index.vue')] const meta = { title: 'named1', type: 'master' } return { path, name, component, meta } })const comModules = import.meta.glob('.//index.vue') const _abvuePageList = Object.entries(comModules).map(([k, v]) => { const path = k.replace('./', '').replace('/index.vue', '') || '/' const name = path.split('/').filter(Boolean).join('-') || 'index' const component = comModules[k.replace('page.ts', 'index.vue')] const meta = { title: 'named1', type: 'master' } return { path, name, component, meta } }) 优化

const meta = { title: 'named1', type: 'master' } return { path, name, component, meta } }) 可以将重复的部分提取出来，减少代码量和冗余： const comModules = import.meta.glob('./**/index.vue') const...

const comModules = import.meta.glob('./**/index.vue') const _abvuePageList = Object.entries(comModules).map(([k, v]) => { const path: string = k.replace('./', '').replace('/index.vue', '') || '/' const name: string = path.split('/').filter(Boolean).join('-') || 'index' const component = v as AsyncComponentLoader<Component<any>> const meta = { title: 'named1', type: 'master' } return { path, name, component, meta } }) 优化一下

const meta = { title: 'named1', type: 'master' } return { path, name, component, meta } }) 2. 使用可选链操作符简化代码： const comModules = import.meta.glob('./**/index.vue') const _...

downloadExcel() { const header = ['Name', 'Age']; // 表头数据 const data = [{ Name: 'John', Age: 28 }, { Name: 'Jane', Age: 32 }]; // 表格数据 const wb = XLSX.utils.book_new(); const ws = XLSX.utils.json_to_sheet(data, { header }); XLSX.utils.book_append_sheet(wb, ws, 'Sheet1'); const wbout = XLSX.write(wb, { bookType: 'xlsx', type: 'binary' }); const blob = new Blob([s2ab(wbout)], { type: 'application/octet-stream' }); FileSaver.saveAs(blob, 'example.xlsx');} 可以将表头设置为一个数组，里面是对象，有表头名字与，key 表格数据根据key传入

const blob = new Blob([s2ab(wbout)], { type: 'application/octet-stream' }); FileSaver.saveAs(blob, 'example.xlsx'); } 这里我们将表头设置为一个对象数组，每个对象有两个属性：Name和key。其中Name...

将这三个参数转换为json字符串 const lat = Cesium.Math.toDegrees(radians.latitude); //弧度转度 const lng = Cesium.Math.toDegrees(radians.longitude); const alt = radians.height;

const jsonString = JSON.stringify(data); console.log(jsonString); 这将输出以下结果： {"latitude":37.7749,"longitude":-122.4194,"height":0} 注意，示例代码中的 latitude、longitude 和 ...

const cloud = require('wx-server-sdk') cloud.init({ env: cloud.DYNAMIC_CURRENT_ENV }) const db = cloud.database() const col = db.collection('usersproducts') exports.main = async (event, context) => { console.log(event) let query = { _openid: event.usersID } if (event.query.searchInput) { const reg = db.RegExp({ regexp: event.query.searchInput, options: 'i' }) query = { ...query, $or: [ { namea: reg }, { nameb: reg }, { carmodelname: reg } ] } } if (event.query.type) { query = { ...query, type: event.query.type } } const res = await col.where(query) .orderBy('lastTime', 'desc') .skip(event.length) .limit(event.limit) .get() const ps = res.data console.log(ps) return ps }详细解读这段代码的意思

type: event.query.type } } // 查询数据 const res = await col.where(query) .orderBy('lastTime', 'desc') .skip(event.length) .limit(event.limit) .get() // 处理查询结果并返回 const ps = res....

methods: { downloadExcel() { //创建一个工作簿 const wb = XLSX.utils.book_new(); //创建一个工作表 const ws = XLSX.utils.json_to_sheet([{ name: 'John', age: 28 },{ name: 'Jane', age: 32 }]); //将工作表添加到工作簿中 XLSX.utils.book_append_sheet(wb, ws, 'Sheet1'); //将工作簿转换成二进制数据流 const wbout = XLSX.write(wb, { bookType: 'xlsx', type: 'binary' }); //将二进制数据流转换成Blob对象 const blob = new Blob([s2ab(wbout)], { type: 'application/octet-stream' }); //使用file-saver库将文件保存到本地 FileSaver.saveAs(blob, 'example.xlsx'); }} 怎么改变表头数据

要改变表头数据，只需要在 XLSX.utils.... const blob = new Blob([s2ab(wbout)], { type: 'application/octet-stream' }); //使用file-saver库将文件保存到本地 FileSaver.saveAs(blob, 'example.xlsx'); } }

public class DateTimeText : MonoBehaviour { public StringBuilder StrBuilder { get; set; } = new StringBuilder(); public Text m_dateText; public Text m_timeText; public Text m_weekText; DateTime m_lastDateTime; public DateTime CurrentDateTime { get; private set; } = DateTime.Now; void Start() { if (m_dateText != null) { m_dateText.text = GetDate(); } m_lastDateTime = DateTime.Now; } private string GetDate() { return CurrentDateTime.ToString(DateTimeFormat.DateFormat); } private string GetTime() { return CurrentDateTime.ToString(DateTimeFormat.TimeFormat); } private string GetWeek() { return CurrentDateTime.ToString("dddd"); } float m_interval = 0; void Update() { CurrentDateTime=DateTime.Now; m_interval += Time.deltaTime; if (m_interval >= 0.5f) { m_interval -= 0.5f; DateTime time = CurrentDateTime; if (m_dateText != null) { if (m_lastDateTime.Day != time.Day) { m_dateText.text = GetDate(); m_lastDateTime = time; } } if (m_timeText != null) { if (m_lastDateTime.Second != time.Second) { m_timeText.text = GetTime(); m_lastDateTime = time; } } if (m_weekText!=null) { if (m_lastDateTime.DayOfWeek!=time.DayOfWeek) { m_weekText.text = GetWeek(); m_lastDateTime = time; } } } } } public class DateTimeFormat { public const string Moday = "Moday"; public const string Tuesday = "Tuesday"; public const string Wednesday = "Wednesday"; public const string Thursday = "Thursday"; public const string Friday = "Friday"; public const string Saturday = "Saturday"; public const string Sunday = "Sunday"; public const string DateFormat = "yyyy/MM/dd"; public const string TimeFormat = "HH:mm:ss"; }这段代码显示不了星期数，是什么问题，请详细说下

这段代码中定义了一个获取当前日期和时间的类 DateTimeText，其中包括一个获取星期数的方法 GetWeek()。但是在 Update() 方法中，判断星期数是否变化的条件语句中使用了错误的变量名，应该是 m_lastDateTime....

methods: { downloadExcel() { //创建一个工作簿 const wb = XLSX.utils.book_new(); //创建一个工作表，并设置表头数据 const ws = XLSX.utils.json_to_sheet([{ Name: 'John', Age: 28 },{ Name: 'Jane', Age: 32 }], { header: ['Name', 'Age'] }); //将工作表添加到工作簿中 XLSX.utils.book_append_sheet(wb, ws, 'Sheet1'); //将工作簿转换成二进制数据流 const wbout = XLSX.write(wb, { bookType: 'xlsx', type: 'binary' }); //将二进制数据流转换成Blob对象 const blob = new Blob([s2ab(wbout)], { type: 'application/octet-stream' }); //使用file-saver库将文件保存到本地 FileSaver.saveAs(blob, 'example.xlsx'); }} 表头可以单独提出来设置吗

const blob = new Blob([s2ab(wbout)], { type: 'application/octet-stream' }); FileSaver.saveAs(blob, 'example.xlsx'); } 这样就可以单独设置表头数据，并将其与表格数据一起传入 json_to_sheet 方法...

result = client.search(image, image_type, group_id_list, aip::null);案例不使用mat

string image = base64_encode((const unsigned char*)buffer.str().data(), buffer.str().size()); // 调用人脸搜索接口 string image_type = "BASE64"; string group_id_list = "group1"; Json::Value ...

const downloadExcel = () => { console.log(1); const data = [{姓名:'张三',年龄:'20'},{姓名:'李四',年龄:'28'}]; const filename = '测试.xlsx'; const workbook = XLSX.utils.book_new(); const sheet = XLSX.utils.json_to_sheet(data); // sheet['B1'].s = { font: { bold: true }, fill: { fgColor: { rgb: "FFFFAA00" } } ,alignment:{ horizontal: "center", vertical: "middle" }}; XLSX.utils.book_append_sheet(workbook, sheet, 'Sheet1'); const wbout = XLSX.write(workbook, { bookType: 'xlsx', type: 'binary' }); function s2ab(s) { const buf = new ArrayBuffer(s.length); const view = new Uint8Array(buf); for (let i = 0; i < s.length; i++) view[i] = s.charCodeAt(i) & 0xFF; return buf; } const blob = new Blob([s2ab(wbout)], { type: 'application/octet-stream' }); const url = URL.createObjectURL(blob); const a = document.createElement('a'); a.href = url; a.download = filename; a.click(); URL.revokeObjectURL(url); } 如何把data中的请求头分开

const headerStr = "key1: value1\r\nkey2: value2\r\n"; const headers = headerStr.split("\r\n").reduce((acc, curr) => { const [key, value] = curr.split(": "); acc[key] = value; return acc; }, {}); ...

Types.ARRAY

const TodoList = types.model({ todos: types.array(types.string), }); const todoList = TodoList.create({ todos: ['Buy milk', 'Walk the dog'], }); console.log(todoList.todos); // ['Buy milk', 'Walk ...

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将这三个参数转换为json字符串 const lat = Cesium.Math.toDegrees(radians.latitude); //弧度转度 const lng = Cesium.Math.toDegrees(radians.longitude); const alt = radians.height;

result = client.search(image, image_type, group_id_list, aip::null);案例不使用mat

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