HarmonyOS 如何预防点击组件的双击抖动？

可以定义一个节流函数throttle，设置间隔时间控制事件的触发。参考代码如下：

function throttle(func: Function, interval: number) {
  let lastTime = 0;
  return () => {
    const nowTime = Date.now();
    const remainTime = interval - (nowTime - lastTime);
    if (remainTime <= 0) {
      lastTime = nowTime;
      func();
    }
  };
}

@Entry
@Component
struct Index {
  @State num: number = 0

  build() {
    Row() {
      Column() {
        Text(this.num.toString())
        Button("click").onClick(throttle(() => {
          this.num++
        }, 5000))
      }
      .width('100%')
    }
    .height('100%')
  }
}