有了动画视觉(例如，旋转时钟)，用户可以意识到将要发生什么，更愿意等待进程完成。
With animated visual (for example, a spinning clock), the user has a sense that something is happening and is much more willing to wait for the process to complete.
现在您可以使用循环结合已学到的知识捕获每秒的时钟外观图像，然后组合这些图像来制作动画GIF图像。
Now you can use a loop with what you have learned already to capture images of the clock face every second and then combine the images to make an animated GIF image.
最后，我将配合ca时钟更新图像来动画图像。
Finally, I animate the image by updating it in tandem with the tick of the CA clock.
我不认为它会像动画文字工作，它需要的时钟参考。
I don't think it would have worked just as animated text, it needed the references of the clock.
将指定的不透明度设置推送到绘图上下文上，并应用指定的动画时钟。
Pushes the specified opacity setting onto the drawing context and applies the specified animation clock.
将指定的不透明度设置推送到绘图上下文上，并应用指定的动画时钟。
Pushes the specified opacity setting onto the drawing context and applies the specified animation clock.
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