if event.type == MOUSEBUTTONDOWN : if event.button == 1 : if speed_rect.collidepoint(event.pos) : for each in enemies : each.accelerate *= 2 if pause_rect.collidepoint(event.pos) : paused = not paused for each in towers_pos : if each.rect.collidepoint(event.pos) : photo = Image.PhotoImage(file=r"zt.gif") photo1 = tkinter.PhotoImage(file=r"zt.gif") photo2 = tkinter.PhotoImage(file=r"zt.gif") button_3 = BUTTON(screen , (each.rect.left + 30 , each.rect.top - 30) , image=photo) button_2 = BUTTON(screen , (each.rect.left + 30 , each.rect.top) , image=photo1) 请问我这个用鼠标点击事件配合按钮，为什么加载错误，有没有什么好的方法吗？我这个类似于保卫萝卜的炮塔升级，怎么写代码呀