判断CAD版本

使用命令: ACADVER

ACADVER = "17.2s (LMS Tech)" (只读)

CAD2016  

ACADVER = "20.1s (LMS Tech)" (只读)

CAD2015  

ACADVER = "20.0s (LMS Tech)" (只读)

CAD2013  

ACADVER = "19.0s (LMS Tech)" (只读)

CAD2010 

ACADVER = "18.0s (LMS Tech)" (只读)

CAD2009  

ACADVER = "17.2s (LMS Tech)" (只读)

读取系统变量的返回结果即可判断当前打开的CAD版本