下面这个techDisplays显示的参数,“ Vis Sel Con2ChgLy DrgEnbl Valid ”这几个参数是什么意思,它下面所对应的 “t”和“nil”又是表达什么意思?
菜鸟问题 希望大神解答
techDisplays(
;( LayerName Purpose Packet Vis Sel Con2ChgLy DrgEnbl Valid )
;( --------- ------- ------ --- --- --------- ------- ----- )
( L0 drawing L0 t t t t t )
( L1 drawing L1 t t t t t )
( L2 drawing L2 t t t t t )
( L3 drawing L3 t t t t t )
( L4 drawing L4 t t t t t )
( L5 drawing L5 t t t t t )
( L6 drawing L6 t t t t t )
( L7 drawing L7 t t t t t )
( L8 drawing L8 t nil t t t )