http://v.youku.com/v_show/id_XNzMzNzcyNTUy.html
我们讨论了在After Effects中表达式的基本功能和高级功能。也许在以后的效果最有力的工具，这个培训会给你表达的深刻理解，无疑将采取您的视觉效果和运动图形到一个新的水平。本课程提供一步步讲解如何提高您的工作流程，动画，以及速迈的培训。
In Expression.Essentials, we discusses the basic and advanced features of expressions within After Effects. Perhaps the most powerful tool within after effects, this training will give you a deep understanding of expressions that will undoubtedly take your visual effects and motion graphics to the next level. The course provides a step by step training on how to improve your workflow, animations, as well as speed. This training is ideal for those already familiar with After Effects and includes detailed coverage of each stage with animating pointers and tips. Two bonus expression PDF’s are included with the course for reference.
介绍视频：
教程目录：
The Basics
Arrays and Variables
Value Expressions
If/Else Conditional
thisComp
Math Function
Wiggle
Linear Expression
Sample Image
Random/Clamp
Delay Time
Random/Clamp
Time Saving Tools
Real Life Project
教程下载：
