16

5 - 图1

  1. #第 16 题
  3. Flyer[0].step(3)
  5. Dev.turnRight()
  6. Dev.step(5)
  7. Dev.wait(9)
  9. Dev.turnLeft()
  10. Dev.step(8)
  11. Dev.turnLeft()
  12. Dev.step(2)

20

5 - 图2

  1. # 第 20 题
  4. Dev.turnRight()
  5. for i in range(6):
  6.     Spaceship.step()
  8.     if not Item[1+2*i].broken():
  9.         Dev.step(2)
  10.         Dev.step(-2)
  12.     if not Item[2*i].broken():
  13.         Dev.step(-(Spaceship.y - Item[2*i].y))
  14.         Dev.step(Spaceship.y - Item[2*i].y)
  16.     Spaceship.step()

5 - 图3

21

  1. # 第 21 题
  3. for i in range(6):
  4.     if i == 2 or i == 3 or i == 4:
  5.         Dev.step()
  6.         Dev.step(-1)
  7.     Spaceship.step()
  8.     if i == 0 or i == 1 or i == 5:
  9.         Dev.step(-4)
  10.         Dev.step(4)
  12.     Spaceship.step()

26

5 - 图4

  1. # 第 26 题
  3. for i in range(3):
  5.     Spaceship.turnRight()
  6.     for j in range(3):
  7.         Spaceship.step(2)
  8.         Dev.step(1+i+j)
  9.         Dev.step(-(1+j + i))
  11.     Spaceship.step(1+i) 
  12.     Dev.turnRight()

29

5 - 图5

  1. def g(a,n,m):
  2.     Spaceship.step(a)
  3.     Dev.step(n)
  4.     Dev.turnLeft()
  5.     Dev.step(m)
  6.     Dev.turnRight()
  7.     Spaceship.step(m)
  8.     Dev.step(-n)
  10. Spaceship.step(4)
  11. Spaceship.turnRight()
  12. Spaceship.step(2)
  13. Dev.step(-4)
  15. g(2,4,1)
  16. Spaceship.step(7)
  17. Spaceship.turnRight()
  18. Dev.turnRight()
  19. g(1,4,2)
  20. g(2,5,1)
  21. Spaceship.step(5)
  22. Spaceship.turnRight()
  23. Dev.turnRight()
  24. g(4,3,3)

30

5 - 图6

  1. def g(n):
  2.     if n >= 1:
  3.         Dev.step(n)
  4.         g(n/2)
  5.         Dev.step(-n)
  6.         Dev.turnRight()
  7.         Dev.step(-n)
  8.         Dev.turnLeft()
  9.         g(n/2)
  10.         Dev.turnRight()
  11.         Dev.step(n)
  12.         Dev.turnLeft()
  14. g(8)