呵呵，多谢大家指点，我编出来了。大家看下还有没有更方便的方法？
A M 0.0
= L 20.0
A L 20.0
L S5T#30S
SD T 0
A M 0.1
R T 0
L T 0
T MW 10
NOP 0
A T 0
= Q 4.0
A L 20.0
A(
L 200
L MW 10
>I
)
= Q 4.1
A L 20.0
A(
L 150
L MW 10
>I
)
= Q 4.2
A L 20.0
A(
L 100
L MW 10
>I
)
= Q 4.3