反转Tkinter画布上的y坐标和基于多时间的多个画布对象的动画

import tkinter as tk

root = tk.Tk()
canvas = tk.Canvas(root, width=400, height=400)
canvas.pack()

# 反转y坐标
canvas.scale("all", 0, canvas.winfo_height(), 1, -1)

# 绘制图形
canvas.create_oval(100, 100, 300, 300, fill="red")
canvas.create_rectangle(200, 200, 250, 250, fill="blue")

root.mainloop()

import tkinter as tk

root = tk.Tk()
canvas1 = tk.Canvas(root, width=400, height=400)
canvas1.pack()

canvas2 = tk.Canvas(root, width=400, height=400)
canvas2.pack()

def animate():
    # 更新画布1的内容
    canvas1.delete("all")
    canvas1.create_oval(100, 100, 300, 300, fill="red")
    
    # 更新画布2的内容
    canvas2.delete("all")
    canvas2.create_rectangle(200, 200, 250, 250, fill="blue")
    
    # 设置下一次更新的时间间隔
    root.after(1000, animate)

# 启动动画
animate()

root.mainloop()