python数字滚动效果怎么实现

import tkinter as tkclass NumberRollingApp:def __init__(self, root):self.root = rootself.number = 0self.label = tk.Label(root, text=str(self.number), font=("Arial", 24))self.label.pack()self.roll_number()def roll_number(self):self.number += 1if self.number > 9:self.number = 0self.label.config(text=str(self.number))self.root.after(1000, self.roll_number)if __name__ == "__main__":root = tk.Tk()app = NumberRollingApp(root)root.mainloop()