Python精灵模块的Button指令

from sprites import Screen,Button,showinfo,mouse_pos

def clickme():
    showinfo('啊啊')

screen = Screen()
screen.setup(800,600)
screen.xy_grid()
b = Button(x=100,y=200,text='点我呀',
           command=clickme,bg='lime',
           height=2,width=10)

c = Button(x=400,y=200,text='点我呀',
           command=lambda:showinfo(mouse_pos()),
           bg='cyan',height=2,width=10)

screen.mainloop()