thread sleepThread.Sleep的问题

Thread.Sleep的问题

调用的时候试试这个，需要异步调用才行 private void PlaySound(instructionSequence instructionsequence,int i) { instructionsequence.ApplyAnimationClock(FrameworkElement.OpacityProperty, null); animation = new DoubleAnimationUsingKeyFrames(); animation.FillBehavior = ; animation.BeginTime = TimeSpan.FromMilliseconds(i * 700); Storyboard.SetTarget(animation, instructionsequence); Storyboard.SetTargetProperty(animation, new PropertyPath("Opacity")); instructionsSequence.Children.Add(animation); animation.KeyFrames.Add(new EasingDoubleKeyFrame(0.3, KeyTime.FromTimeSpan(TimeSpan.Zero))); animation.KeyFrames.Add(new EasingDoubleKeyFrame(1, KeyTime.FromTimeSpan(TimeSpan.FromMilliseconds(500)))); //这两行是我后来加进去希望能发声的 press(i); Thread.Sleep(700); } private void DisplayInstructions() { Storyboard instructionsSequence = new Storyboard(); DoubleAnimationUsingKeyFrames animation; for (int i = 0; i < this.instructionSequence.Length; i++) { this.Dispatcher.Invoke(new Action(() => { PlaySound(instructionSequence[i],i); })); ｝ } 以上手改写的 可能有地方错误 希望自己能修改 希望能帮到你