在本课程中，学习如何像专业人士一样使用表达式——比其他传统动画技术更干净、更快地使用它们。 与讲师Luisa Winters一起学习如何添加和编辑表达式； 改变速率、值和音乐幅度等维度； 并使用变量来全局分配和更改值。 在此过程中，了解如何使用 After Effects 表达式语言菜单并将随机性引入表达式中以优化您的创作可能性。 在本课程结束时，您也将准备好开始使用各种其他表达式，包括延迟调整、频率、衰减、弹跳、toComp 表达式等等。

In this course, learn how to use expressions like a pro—working with them cleaner and faster than other traditional animation techniques. Join instructor Luisa Winters as she shows you how to add and edit expressions; change dimensions such as rate, value, and music amplitude; and use variables to assign and change values globally. Along the way, find out how to use the After Effects Expression Language menu and introduce randomness into expressions to optimize your creative possibilities. By the end of this course, you’ll be prepared to start wielding a wide range of other expressions, too, including delay adjustments, frequency, decay, bounce, the toComp expression, and much more.

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