关于python面向对象初探示例代码

import randomclass Sprite:    step = [-2,+2,-3,+3]    def __init__(self,gm,point=None):        self.gm = gm        if point is None:            self.point = random.randint(0,20)        else:            self.point = point    def jump(self):        astep = random.choice(Sprite.step)        if 0 <p><br></p>