共15頁，第1頁HarmonyOS鴻蒙應(yīng)用開發(fā)期末測試卷（四）參考答案一、單選題（本題共20小題，滿分40分）1.C2.D3.A4.D5.C6.A7.B8.B9.A10.D11.D12.A13.C14.D15.A16.C17.A18.A19.B20.B二、填空題（本題共10小題，滿分20分）1.智能手機(jī)；其他智能設(shè)備2.模擬器3.length4.public,private,protected5.實例化6.屏幕尺寸7.Row8.backgroundColor9.??10.resources三、判斷題（本題共10小題，滿分10分）1.√2.×3.√4.×5.×6.√7.×8.√9.×10.√四、編程題（本題共2小題，滿分20分）1.@Entry

@Component

structIndex{

@StatefontSize:number=20;

@StatefontStyle:string='normal'

build(){

Column(){

Text('HelloHarmonyOS')

.fontSize(this.fontSize)

.fontWeight(this.fontStyle=='normal'?FontWeight.Normal:FontWeight.Bold)

.margin({bottom:20})

Slider({

value:this.fontSize,

min:10,

max:40

})

.onChange((value:number)=>{

this.fontSize=value;

if(value>30){

this.fontStyle='bold';

}else{

this.fontStyle='normal';

}

})

}

.padding(20)

.width('100%')

.height('100%')

}

}

2.@Entry

@Component

structCounterPage{

@Statecount:number=0;

build(){

Column(){

Text(`Count:${this.count}`)

.fontSize(30)

Row(){

Button('-')

.onClick(()=>{

this.count--;

})

Button('+')

.onClick(()=>{

this.count++;

})

}

}

.width('100%')

.height('100%')

.justifyContent(FlexAlign.Center)

}

}五、簡答題（本題共1小題，滿分10分）1.interfaceMeiTuan{

title:string,

content:string,

time:string

}

@Entry

@Component

structIndex{

@Statemessages:Array<MeiTuan>=[

{title:'訂單通知',content:'您的訂單已送達(dá)',time:'10:00'},

{title:'優(yōu)惠活動',content:'新用戶立減20元',time:'09:30'},

{title:'系統(tǒng)公告',content:'App版本更新',time:'08:15'}

];

build(){

Column(){

List(){

ForEach(this.messages,(message:MeiTuan)=>{

ListItem(){

Column(){

Row(){

Text(message.title)

.fontSize(18)

.fontWeight(FontWeight.Bold)

Blank()

Text(message.time)

.fontSize(14)

.fontColor('#999999')

}

.width('100%')

.padding({bottom:8})

Text(message.content)

.fontSize(16)

.fontColor('#333333')

.width('100%')

.textAlign(TextAlign.Start)

}

.padding(16)

.backgroundColor('#FFFFFF')

.borderRadius(8)

.margin({bottom:8})

.width('100%')

}

.onClick(()=>{

AlertDialog.show({

title:message.title,

message:message.content,

autoCancel:true

});

})

})

}

.width