If you start the game now with your unit test the ball will move away from the center and go out of the screen, which is not really cool.

如果你现在就运行你的测试，球将会从屏幕中央飞出屏幕，这看起来就不够酷了。

youdao

If you start the game now with your unit test the ball will move away from the center and go out of the screen, which is not really cool.

如果你现在就运行你的测试，球将会从屏幕中央飞出屏幕，这看起来就不够酷了。

youdao