HarmonyOS 是否有类似vue里的子组件通过emit触发父组件里方法的api ？

//父组件调用子组件的方法参考代码： 
 
@Component 
struct Child  { 
  @State private text: string = '初始值' 
  private controller: ChildController = new ChildController(); 
 
  aboutToAppear() { 
    if(this.controller) { 
      //给controller对应的方法赋值 
      this.controller.changeText = this.changeText 
    } 
  } 
  //封装的能力 
  private changeText = (value: string) =>{ 
    this.text = value 
  } 
  build() { 
    Column() { 
      Text(this.text) 
    } 
  } 
} 
//定义controller对象 
class ChildController { 
  changeText = (value: string) => {} 
} 
@Entry 
@Component 
struct Parent { 
  private  ChildRef = new ChildController() 
  build() { 
    Column() { 
      Text('调用Child的changeText').fontSize('18vp').fontColor(Color.Gray) 
      Divider() 
      Child({ controller:this. ChildRef }) 
      Button('Parent调用childer的changeText').onClick(() => { 
        this.ChildRef.changeText('Parent调用childer的changeText') 
      }) 
    } 
    .justifyContent(FlexAlign.Center) 
    .width("100%") 
    .height("100%") 
  } 
} 
 
 
//子组件调用父组件里的方法： 
@Entry 
@Component 
struct Index12 { 
  clickFunc (data:number){ 
    console.log(data.toString()) 
 
  } 
 
  build() { 
    Row() { 
      Column() { 
        child({click:(data:number):void=>this.clickFunc(data)}) 
      } 
      .width('100%') 
    } 
    .height('100%') 
  } 
} 
 
@Component 
export struct child { 
 
  click?=(data:number)=>{}; 
 
 
  build() { 
    Row() { 
      Column() { 
        Text('点击子组件') 
          .onClick(()=>{ 
            if (this.click != undefined ) { 
              this.click(123); 
            } 
          }) 
 
      } 
      .width('100%') 
    } 
    .height('100%') 
  } 
 
}
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