HarmonyOS如何手动重置自定义组件？

import { UIContext } from '@ohos.arkui.UIContext';  
import { NodeController, BuilderNode, FrameNode } from '@ohos.arkui.node';  
declare class Params {  
  componentId: number  
}  
@Entry  
@Component  
struct Index {  
  @State componentId: number = 1  
  @State baseNode: MyNodeController = new MyNodeController(this.componentId)  
  build() {  
    Column() {  
      Button('联系人1')  
        .onClick(() => {  
          if(this.componentId !== 1){  
            this.componentId = 1;  
            this.baseNode.update(this.componentId).rebuild()  
          }  
        })  
      Button('联系人2')  
        .onClick(() => {  
          if(this.componentId !== 2){  
            this.componentId = 2;  
            this.baseNode.update(this.componentId).rebuild()  
          }  
        })  
      NodeContainer(this.baseNode)  
    }  
  }  
}  
@Component  
struct ChildComponent {  
  @Prop componentId: number  
  @State number: number = 0  
  
  build() {  
    Column() {  
      Button(`联系人${this.componentId} ++`)  
        .onClick(() => {  
          this.number ++;  
        })  
      Text(`计数：${this.number}`)  
    }  
  }  
}  
@Builder  
function ChildBuilder(params: Params) {  
  Row(){  
    ChildComponent(params)  
  }  
}  
class MyNodeController extends NodeController {  
  componentId: number = 1  
  constructor(componentId: number) {  
    super();  
    this.componentId = componentId;  
  }  
  private rootNode: BuilderNode<[Params]> | null = null;  
  private wrapBuilder: WrappedBuilder<[Params]> = wrapBuilder(ChildBuilder);  
  update(componentId: number) {  
    this.componentId = componentId;  
    return this;  
  }  
  makeNode(uiContext: UIContext): FrameNode | null {  
    if (this.rootNode === null) {  
      this.rootNode = new BuilderNode(uiContext);  
    }  
    this.rootNode.build(this.wrapBuilder, { componentId: this.componentId })  
    return this.rootNode.getFrameNode();  
  }  
}
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