在不使用双向绑定的情况下，是否可以主动通过函数触发组件的刷新

@Observed  
class ClassA {  
  public c: number;  
  
  constructor(c: number) {  
    this.c = c;  
  }  
}  
  
@Component  
struct ViewA {  
  @Link arrA:ClassA[]  
  
  build() {  
    Column() {  
      ForEach(this.arrA,(item:ClassA,index)=>{  
        Button(`this.a.c = ${item ? item.c : "undefined"}`)  
          .onClick(() => {  
            let newC = item.c+1  
            this.arrA[index] = new ClassA(newC)  
          })  
      })  
    }  
  }  
}  
  
@Entry  
@Component  
struct ViewB {  
  @State arrA: ClassA[] = [new ClassA(0), new ClassA(0)] ;  
  
  build() {  
    Column() {  
      ViewA({  
        arrA:$arrA  
      })  
  
      Button(`ViewB: reset array`)  
        .onClick(() => {  
          this.arrA = [new ClassA(0), new ClassA(0)];  
        })  
      Button(`ViewB: push`)  
        .onClick(() => {  
          this.arrA.push(new ClassA(0))  
        })  
    }  
  }  
}