SubRangeType 形式:C1C 处理思想: ◆从G1求出其内部类型地址Ptr1和值N1; ◆从C2求出其内部类型地址Ptr2和值N2; ◆检查Ptr1=Ptr2,N1≤N2; ◆Ptr:=★( subsize, subTy,Ptr1,N,N2) ◆ Forward:=0SubRangeType 形式:C1..C2 处理思想: ⬧ 从C1 求出其内部类型地址Ptr1和值N1; ⬧ 从C2 求出其内部类型地址Ptr2和值N2; ⬧ 检查Ptr1 =Ptr2,N1 N2; ⬧ Ptr:=★(subSize,subTy,Ptr1 ,N1 ,N2 ) ⬧ Forward := 0