public class Debouncer
{
    private CancellationTokenSource cancellationTokenSource = new();

    /// <summary>
    /// 防抖
    /// </summary>
    /// <param name="callback">要执行的方法</param>
    /// <param name="waitTime">等待时间（毫秒）</param>
    public void Debounce(Action callback, int waitTime)
    {
        // 取消之前的延时调用
        cancellationTokenSource.Cancel();
        cancellationTokenSource = new CancellationTokenSource();

        Task.Delay(waitTime, cancellationTokenSource.Token)
            .ContinueWith(task =>
            {
                if (!task.IsCanceled)
                {
                    callback();
                }
            });
    }
}