cad+vba的二次开发 主要是对多边形向外向内延伸-cad+ vba key is the secondary development of inward extending outward polygon

当CAD图纸过多时一张张导入太耗时，使用些程序可以实现一键导入所有图纸。导入时使用的比例为1：1(When the CAD drawing is too much, it is too time-consuming to import one sheet. Some programs can be used to import all the drawings with one key. The proportion used when importing is 1:1)