子组件修改父组件的问题，求助大佬？-灵析社区

子组件修改父组件的问题，求助大佬 这里说法是不是矛盾的，是我理解能力不够吗？测试代码，也是，父组件修改子组件能刷新，子组件修改父组件没反应，那个大佬能帮我看看是不是我代码有问题，还是文档有问题： @Observed class ClassA { public value: number; constructor(value: number) { this.value = value; } } class ClassB { public a: ClassA; constructor(a: ClassA) { this.a = a; } } class ClassC { public b: ClassB; constructor(b: ClassB) { this.b = b; } } @Component struct ViewA { label: string = 'ViewA'; @ObjectLink a: ClassA; build() { Row() { Column({space:10}) { Text(`[${this.label}] this.a.value = ${this.a.value}`) .fontSize(20) Button(`ViewA: this.a.value add 1`) .backgroundColor('#ff7fcf58') .onClick(() => { this.a.value += 1 console.log('this.a.value:' + this.a.value) }) } .width("100%") } } } @Entry @Component struct ViewB { @State child: ClassC = new ClassC(new ClassB(new ClassA(10))); build() { Column({space:10}) { ViewA({ a:this.child.b.a }) Text(`ViewB:${this.child.b.a.value}`) Button(`ViewB: this.c.b.a.value add 10`) .backgroundColor('#ff7fcf58') .onClick(() => { this.child.b.a.value += 10 console.log('this.child.b.a.value:' + this.child.b.a.value) }) } } } 文档地址：[https://developer.huawei.com/consumer/cn/doc/harmonyos-guides...](https://link.segmentfault.com/?enc=j%2Bdv6zkbW9oZ1cLWRsVpag%3D%3D.%2BhAF04r5nqWBUmVbLp4HJ1c7KFfxhSqxqzhtZ%2FzH3jz1C5r9rdhnF3soRGnTsIao6C46tvA%2FLSg02CPpLD0JniXpD%2BQZN%2F%2Bvks68%2FOu55cF%2F7%2Fe0bfmlGpPr1eaBa7bDFXXzQ8wMrnpRch%2FYm2YILw%3D%3D) > 本文参与了[思否 HarmonyOS > 技术问答马拉松](https://segmentfault.com/a/1190000044600728)，欢迎正在阅读的你也加入。