声明AnimateFilter、目标显示对象、重复计数、期间之后，就可以声明即将操作的确切滤镜了。

After declaring AnimateFilter, the target display object, repeat count, duration, and the exact filter to be operated on can be declared.

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滤镜效果区别其他效果的一个主要特征是动画的属性是一个Filter对象，而不是动画显示对象的一个属性。

The major differentiating characteristic of filter effects is that the animated property is one of a filter object, rather than animating a property of the display object.

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