Python精灵模块的showstamp指令

from sprites import Screen,Sprite

screen = Screen()
screen.setup(480,360)

bug = Sprite(pos=(-170,0))
for i in range(8):  # 准备盖8个图章
    bug.stamp()
    bug.fd(50)
bug.hide()

while True:
    for d in bug.stampItems:
        bug.hidestamp(d)  # 隐藏编号为d的图章
    bug.wait(0.5)
    for d in bug.stampItems:
        bug.showstamp(d)  # 显示编号为d的图章
    bug.wait(0.5)