各位版主好，我对STL编写的程序不是很了解，请教各位一下，哪位能帮我解释一段？与 或这些逻辑单独的时候我知道意思，可是放到一起我就不知道该怎样理解了，下面是程序，请各位版主指点了，谢谢啦。

A(
A #Remote
AN #Local
A(
A #Auto
A(
O #Start_A
O #Start_S
)
AN #Stop_A
O
AN #Auto
A(
O #Start_M
O #Start_S
)
AN #Stop_M
)
O
A #Local
AN #Remote
A(
A #Auto
A(
O #Start_AL
O #Start_S
)
AN #Stop_AL
O
AN #Auto
A(
O #Start_ML
O #Start_S
)
AN #Stop_ML
)
)
AN #Lock
AN #lock_s
AN #Err
AN #Stop_S
= #Start_S
NOP 0