vba编程手册，提供了各种函数的相关参数和例子-a vba coding reference,in which various functions parameter derections is available,as well as a lot of examples.

在CAD里将另A实体的代码加入到B实体里进行覆盖B实体原有属性-Join the code of another AN entity to the B entity in CAD in carry on overalying a B entity original attribute