CCAnimation
用于演示动画在CCSprite上 动画有自己的名称 比如兔子跳 兔子跑
包含若干个
A object is used to perform animations on the objects.
The object contains objects, and a possible delay between the frames. You can animate a object by using the action. Example:
[sprite runAction:[ actionWithAnimation:animation]];
CCAnimationCache
用与一组动画的管理
Singleton that manages the Animations.
It saves in a cache the animations. You should use this class if you want to save your animations in a cache.