设计实现捕捉功能，单独拿出来实现，能客观的了解，相对来说较简单，适合GIS初学者。-The Design and Implementation of the capture function, separate out to achieve the objective of understanding, is relatively simple, suitable for GIS beginners.

AE开发中的实体编辑程序，可以直接使用，有很好的参考价值-AE development entities editing program, can be used directly, there is a good reference value