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HarmonyOS应用开发者高级认证，Next版本发布后最新题库 - 多选题序号2

news 来源：原创 2024/9/20 7:49:02

基础认证题库请移步：HarmonyOS应用开发者基础认证题库

`注：有读者反馈，题库的代码块比较多，打开文章时会卡死。所以笔者将题库拆分，单选题20个为一组，多选题10个为一组，题库目录如下，读者可以按需跳转。如果对您的阅读产生不便，笔者在这里向大家说声抱歉，请各位读者原谅。完整的md文档，等读者把题库整理完，会将网盘链接发出。`

序号目录：

单选题
HarmonyOS应用开发者高级认证，Next版本发布后最新题库 - 单选题序号1
HarmonyOS应用开发者高级认证，Next版本发布后最新题库 - 单选题序号2
HarmonyOS应用开发者高级认证，Next版本发布后最新题库 - 单选题序号3
多选题
HarmonyOS应用开发者高级认证，Next版本发布后最新题库 - 多选题序号1
HarmonyOS应用开发者高级认证，Next版本发布后最新题库 - 多选题序号2

注：题目是乱序，每次考试，选项的顺序都不同

多选题题库 - 序号2

11、在ArkTS中，以下哪些属性的声明是正确的。

class C {value1: number = 0;value2?: number = null;value3: number | undefined = undefined;value4?: number;}

A、value1

B、value2

C、value3

D、value4

12、如下ABC 3处手势，有机会执行的是哪几处?（不确定，把所有选项列出）

@Entry
@Component
struct ListTest {scroller: Scroller = new Scroller()scroller2: Scroller = new Scroller()scroller3: Scroller = new Scroller()private arr: number[] = [0, 1, 2, 3, 4, 5, 6, 7, 8, 9]private childRecognizer: GestureRecognizer = new GestureRecognizer()private currentRecognizer: GestureRecognizer = new GestureRecognizer()private lastOffset: number = 0build() {Stack({ alignContent: Alignment.TopStart }) {Scroll(this.scroller) {Column() {Text("Scroll Area").width('90%').height(150).backgroundColor(0xFFFFFF).borderRadius(15).fontSize(16).textAlign(TextAlign.Center).margin({ top: 10 })List({ space: 20, initialIndex: 0 }) {ForEach(this.arr, (item: number) => {ListItem() {Text('' + item).width('100%').height(100).fontSize(16).backgroundColor(Color.Blue).textAlign(TextAlign.Center).borderRadius(10)}},(item: string) => item)}.listDirection(Axis.Vertical) // 排列方向.scrollBar(BarState.Off).friction(0.6).divider({strokeWidth: 2,color: 0xFFFFF,startMargin: 20,endMargin: 20}) //每行之间的分界线.edgeEffect(EdgeEffect.None) // 边缘效果设置为Spring.height(1000).width('90%').id("inner")}.width('100%')}.id("outer").height(600).scrollable(ScrollDirection.Vertical) // 滚动方向纵向.scrollBar(BarState.On) // 滚动条常驻显示.scrollBarColor(Color.Gray) // 滚动条颜色.scrollBarWidth(10) // 滚动条宽度.edgeEffect(EdgeEffect.None).onScroll((xOffset: number, yOffset: number) => {console.info(xOffset + ' ' + yOffset)}).onScrollEdge((side: Edge) => {console.info('To the edge')}).onScrollStop(() => {console.info('Scroll Stop')})//  A/*.gesture(TapGesture({ count: 2 }).onAction((event: GestureEvent) => {if (event) {this.value = JSON.stringify(event.fingerList[0])}}))*///  B/*.gesture(PanGesture({PanDirection.Vertical}).onActionUpdate((event: GestureEvent)=>{console.log("zcb onActionUpdate event offsetY " + event.offsetY + "this.lastOffset " + this.lastOffset)}))*///  C/*.parallelGesture(PanGesture({PanDirection.Vertical}).onActionUpdate((event: GestureEvent)=>{console.log("zcb onActionUpdate event offsetY " + event.offsetY + "this.lastOffset " + this.lastOffset)}))*/}.width('100%').height('100%').backgroundColor(0xDCDCDC)}
}

A、NA

B、A

C、B

D、C

13、以下哪些实现方式可实现文本字号20的效果

// A
@Entry
@Component
struct Index {build() {Flex({ direction: FlexDirection.Column, alignItems: ItemAlign.Start, justifyContent: FlexAlign.SpaceBetween }) {Text('This is the text with the height adaptive policy set').width('80%').height(90).minFontSize(20)}.width('100%').height(250).padding({ left: 35, right: 35, top: 35 })}
}

// B
@Entry
@Component
struct SpanExample {build() {Flex({ direction: FlexDirection.Column, alignItems: ItemAlign.Start, justifyContent: FlexAlign.SpaceBetween }) {Text() {Span('span letter spacing').letterSpacing(3).fontSize(20)}.fontSize(30)}.width('100%').height(250).padding({ left: 35, right: 35, top: 35 })}
}

// C
@Entry
@Component
struct Index {build() {Flex({ direction: FlexDirection.Column, alignItems: ItemAlign.Start, justifyContent: FlexAlign.SpaceBetween }) {//文本水平方向对齐方式设置//单行文本Text('TextAlign set to Center.').textAlign(TextAlign.Center).fontSize(20).border({ width: 1 }).padding(10).width('100%')}.height(600).width(350).padding({ left: 35, right: 35, top: 35 })}
}

// D
import { LengthMetrics, LengthUnit } from '@ohos.arkui.node'@Entry
@Component
struct Index {fontStyleAttr: TextStyle = new TextStyle({fontSize:LengthMetrics.vp(20)});mutableStyledString: MutableStyledString = new MutableStyledString("hello", [{start: 0,length: 5,styledKey: StyledStringKey.FONT,styledValue: this.fontStyleAttr}]);controller: TextController = new TextController();async onPageShow() {this.controller.setStyledString(this.mutableStyledString)}build() {Column() {//显示属性字符串Text(undefined, { controller: this.controller })}.width('100%')}
}

A、A

B、B

C、C

D、D

14、依次点击A、B、C、D四个按钮，其中不会触发UI刷新的是:

@Entry
@Component
struct Index {@State count: number = 0;@State @Watch('onValueChange') value: number = 50;onValueChange() {this.count = this.value;}build() {Column() {Text(`${this.count}`)Button("A").onClick(() => {this.count = 0;})Button("B").onClick(() => {for (let i = 0; i < 1000; i++) {this.count = i;}for (let i = 1000; i > 0; i--){this.count = i;}this.count--;})Button("C").onClick(() => {this.value = 100;})Button("D" ).onClick(() => {setInterval(()=>{this.count++;}, 1000)})}}
}

A、A

B、B

C、C

D、D

15、如何实现类似下图布局（不确定，把所有选项列出）

//	图略

//	A
@Entry
@Component
struct Demo {//忽略其他辅助代码dataSource: ItemDataSource = new ItemDataSource(100)itemHeightArray: number[] = []colors: number[] = [0xFFC0CB, 0xDA70D6, 0x6B8E23, 0x6A5ACD, 0x00FFFF, 0x00FF7F]scroller: Scroller = new Scroller()aboutToAppear() {this.getItemSizeArray()}build() {Scroll() {Column() {Grid() {GridItem() {Text('GoodsTypeList')}.backgroundColor(this.colors[0])GridItem() {Text('AppletService')}.backgroundColor(this.colors[1])GridItem() {Text('ReloadData')}.backgroundColor(this.colors[2])}.rowsGap(10).columnsTemplate('1fr').rowsTemplate('1fr 1fr 1fr').width('100%').height(100).margin({top: 10,left: 5,bottom: 10,right: 5})Grid() {LazyForEach(this.datasource, (item: number) => {GridItem() {//使用可复用自定义组件ReusableItem({ item: item })}.width('100%').height(this.itemHeightArray[item % 100]).backgroundColor(this.colors[item % 5])}, (item: number) => '' + item + this.itemHeightArray[item % 100])}.columnsTemplate("1fr 1fr").columnsGap(10).rowsGap(5).width('100%').nestedScroll({scrollForward: NestedScrollMode.PARENT_FIRST,scrollBackward: NestedScrollMode.SELF_FIRST})}}.scrollBar(BarState.Off).edgeEffect(EdgeEffect.None)}
}

//	B
@Entry
@Component
struct Demo {//忽略其他辅助代码dataSource: ItemDataSource = new ItemDataSource(100)itemHeightArray: number[] = []colors: number[] = [0xFFC0CB, 0xDA70D6, 0x6B8E23, 0x6A5ACD, 0x00FFFF, 0x00FF7F]scroller: Scroller = new Scroller()@State sections: WaterFlowSections = new WaterFlowSections()sectionMargin: Margin = { top: 10, left: 5, bottom: 10, right: 5 }oneColumnSection: SectionOptions = {itemsCount: 3,crossCount: 1,rowsGap: 10,margin: this.sectionMargin,onGetItemMainSizeByIndex: (index: number) => {return this.itemHeightArray[index % 100]}}lastSection: SectionOptions = {itemsCount: 97,crossCount: 2,margin: this.sectionMargin,onGetItemMainSizeByIndex: (index: number) => {return this.itemHeightArray[index % 100]}}aboutToAppear() {this.setItemSizeArray()//	初始化瀑布流分组信息let sectionOptions: SectionOptions[] = []sectionOptions.push(this.oneColumnSection)sectionOptions.push(this.lastSection)this.sections.splice(0, 0, sectionOptions)}build() {WaterFlow({ scroller: this.scroller, sections: this.sections }) {LazyForEach(this.dataSource, (item: number) => {FlowItem() {ReusableFlowItem({ item: item })}.width('100%').backgroundColor(this.colors[item % 5])}, (item: string) => item)}.columnsGap(10).rowsGap(5).backgroundColor(0xFAEEE0).width('100%').height('100%')}
}

//	C
@Entry
@Component
struct Demo {//忽略其他辅助代码dataSource: ItemDataSource = new ItemDataSource(100)itemHeightArray: number[] = []colors: number[] = [0xFFC0CB, 0xDA70D6, 0x6B8E23, 0x6A5ACD, 0x00FFFF, 0x00FF7F]scroller: Scroller = new Scroller()aboutToAppear() {this.getItemSizeArray()}build() {Column() {List({ scroller: this.scroller, space: 10 }) {ListItem(){Grid() {GridItem() {Text('GoodsTypeList')}.backgroundColor(this.colors[0])GridItem() {Text('AppletService')}.backgroundColor(this.colors[1])GridItem() {Text('ReloadData')}.backgroundColor(this.colors[2])}.rowsGap(10).columnsTemplate('1fr').rowsTemplate('1fr 1fr 1fr').width('100%').height(100)}ListItem() {WaterFlow(){LazyForEach(this.datasource, (item: number, index: number) => {FlowItem() {//使用可复用自定义组件ReusableItem({ item: item + index })}.width('100%').height(this.itemHeightArray[item % 100]).backgroundColor(this.colors[item % 5])}, (item: number) => '' + item + this.itemHeightArray[item % 100])}.id('Waterflow').columnsTemplate("1fr 1fr").columnsGap(10).rowsGap(5).width('100%').height('100%').nestedScroll({scrollForward: NestedScrollMode.PARENT_FIRST,scrollBackward: NestedScrollMode.SELF_FIRST})}}.scrollBar(BarState.Off).edgeEffect(EdgeEffect.None)}.width('100%').padding({ left: 10, right: 10 })}
}

A、A

B、B

C、C

16、Code Linter针对ArkTS/TS代码进行最佳实践/编程规范方面的检查，最佳实践/编程规范方面的检查规则可以配置，针对codelinter的配置项一下哪些说法是正确的

A、rules：可以基于ruleSet配置的规则集，新增额外规则项，但是无法修改ruleSet中规则默认配置

B、files：配置待检查的文件名单，如未指定目录，规则适用于所有文件，例如: [“**/*.ets”,“**/*.js”,“**/*.ts”]。

C、ignore：配置无需检查的文件目录，其指定的目录或文件需使用相对路径格式，相对于code-linter.json5所在工程根目录，例如：build/**/*。

D、ruleSet：配置检查使用的规则集，规则集支持一次导入多条规则。

代码Code Linter检查-代码检查-代码编辑-DevEco Studio | 华为开发者联盟 (huawei.com)

17、一个应用通常会包含多种功能，将不同的功能特性按模块来划分和管理是一种良好的设计方式。在开发过程中，我们可以将每个功能模块作为一个独立的Module进行开发，下面关于Module的说法正确的是

A、Library类型的Module，用于实现代码和资源的共享，有两种类型，分别为Static Library和Shared Library两种类型。

B、entry类型的Module，是应用的主模块，一个应用只能包含唯一一个entry类型的HAP。

C、Ability类型的Module，用于实现应用的功能和特性，有两种类型，分别为entry和feature。

D、feature类型的Module，应用的动态特性模块，一个应用中可以包含一个或多个feature类型的模块，也可以不包

应用程序包概述-应用程序包基础知识-开发基础知识-基础入门 | 华为开发者联盟 (huawei.com)

18、在大型软件工程中，一般会伴随着多团队开发，各团队开发自己的业务模块，最后再由集成交付团队集成到一起，下面哪些是大型应用模块化开发最佳实践

A、避免用户首次下载应用耗时过长，及过多占用用户空间，不常用功能做成按需加载。

B、若多个模块依赖了不同版本的HAR，使用OHPM的overrides机制配置指定使用哪个版本的HAR，以减少包大小。

C、使用路由表进行模块间解耦。

D、一次上架多端部署。

19、通过如下openLink的接口启动，如下哪些配置的UIAbility不可能被拉起（不确定，把所有选项列出）

import { hilog } from '@kit.PerformanceAnalysisKit';
import { UIAbility, common, OpenLinkOptions } from '@kit.AbilityKit';
import { BusinessError } from '@kit.BasicServicesKit';export default class MyAbility extends UIAbility {onForeground() {let link: string = "https://www.example.com"let openLinkOptions: OpenLinkOptions = {applinkingOnly: true,parameters: {demo_key: "demo_value"}};try {this.context.openLink(link,openLinkOptions,(err, result) => {hilog.error(DOMAIN, TAG, 'openLink callback error.code:' + JSON.stringify(err));}).then(()=>{hilog.info(DOMAIN, TAG, 'open link success.');}).catch((err: BusinessError)=>{hilog.error(DOMAIN, TAG, 'open link failed, errCode ' + JSON.stringify(err.code));})}catch (e) {hilog.error(DOMAIN, TAG, 'exception occured, errCode ' + JSON.stringify(e.code));}}
}

// A
{"name": "TargetAbility","skills": [{"actions": ["ohos.want.action.vieData",],"entities": ["entity.system.browsable",],"uris": [{"scheme": "http","host": "www.test.com","port": "8080","path": "path"}			]}]
}

//	B
{"name": "TargetAbility","skills": [{"actions": ["ohos.want.action.viewData",],"entities": ["entity.system.browsable",],"uris": [{"scheme": "https","host": "www.test.com","port": "8080","path": "path","autoVerify": ture}			]}]
}

//	C
{"name": "TargetAbility","skills": [{"actions": ["ohos.want.action.sendData",],"entities": ["entity.system.browsable",],"uris": [{"scheme": "http","host": "www.test.com","port": "8080","path": "path","autoVerify": ture}			]}]
}

//	D
{"name": "TargetAbility","skills": [{"actions": ["ohos.want.action.SendData",],"entities": ["entity.system.browsable",],"uris": [{"scheme": "https","host": "www.test.com","port": "8080","path": "path","autoVerify": ture}			]}]
}

A、A

B、B

C、C

D、D

20、某个应用的启动框架配置文件详细信息如下，以下说法正确的是:

{"startupTasks": [{"name": "StartupTask_001","srcEntry": "./ets/startup/StartupTask_001.ets","dependencies": ["StartupTask_002","StartupTask_003"],"runOnThread": "taskpool","waitOnMainThread": false},{"name": "StartupTask_002","srcEntry": "./ets/startup/StartupTask_002.ets","dependencies": ["StartupTask_004"],"runOnThread": "taskpool","waitOnMainThread": false},{"name": "StartupTask_003","srcEntry": "./ets/startup/StartupTask_003.ets","runOnThread": "taskpool","waitOnMainThread": false},{"name": "StartupTask_004","srcEntry": "./ets/startup/StartupTask_004.ets","runOnThread": "taskpool","waitOnMainThread": false},{"name": "StartupTask_005","srcEntry": "./ets/startup/StartupTask_005.ets","runOnThread": "mainThread","waitOnMainThread": true},{"name": "StartupTask_006","srcEntry": "./ets/startup/StartupTask_006.ets","runOnThread": "mainThread","waitOnMainThread": false,”excludeFromAutoStart": true}],"configEntry": "./ets/startup/StartupConfig.ets"}