HarmonyOS鸿蒙Next中使用组件传递两个参数时@Watch监视其中一个参数，修改另一个参数会执行监视函数

HarmonyOS鸿蒙Next中使用组件传递两个参数时@Watch监视其中一个参数，修改另一个参数会执行监视函数

子组件中只监视了 text 数组，同时传递 flag 改变 flag 时会执行 func 函数；将 text 数组改成简单数组时又不会执行

export interface Nav {
  id: number
  name: string
}

@Entry
@Component
struct test {
  @State text: Nav[] = [
    { id: 1, name: '1' },
    { id: 2, name: '3' },
    { id: 3, name: '4' },
    { id: 4, name: '2' },
  ]
  @State current: number = 0
  @State flag: boolean = false

  build() {
    Column() {
      Button('改变current')
        .onClick(() => this.current = (this.current + 1) % 4)
      Button('改变flag')
        .onClick(() => {
          this.flag = !this.flag
          console.log('父组件中的flag',this.flag.toString())
        })
      myCom({ flag: this.flag, text: this.text[this.current] })
      // myCom({ flag: this.flag, text1: ['1','3','4','2'][this.current] })
    }
  }
}

@Component
struct myCom {
  @Prop flag: boolean

  @Prop
  [@Watch](/user/Watch)("func")
  text: Nav

  @State text_a: string[] = Array.from({ length: 3 })

  func() {
    console.log('子组件中的flag',this.flag)
    this.text_a[0] = this.text.name + '8'
    this.text_a[1] = this.text.name + '9'
    this.text_a[2] = this.text.name + '7'
    if (this.flag)
      this.text_a.sort()
  }

  aboutToAppear(): void {
    console.log('页面生销了',)
    this.func()
  }

  build() {
    Column() {
      ForEach(this.text_a, (item: string) => {
        Text(item)
          .fontSize(30)
          .onClick(()=>console.log('子组件中的flag2',this.flag))
      })
    }
  }
}