我用 canvas 做的 不是label

from tkinter import *
from PIL import ImageTk, Image
from time import *

class Arrow():
    def __init__(self):
        self.root = Tk()
        self.canvas = Canvas(self.root, width=400, height=375)
        self.canvas.pack()
        self.img = ImageTk.PhotoImage(Image.open("arrow.png"))
        self.root.after(0, self.animation)
        self.root.mainloop()
    
    def animation(self):
        while True:
            for y in range(60, 525, 125):
                sleep(1)
                self.canvas.delete('all')
                self.canvas.create_image(200, 375-y, image=self.img)
                self.canvas.update()

Arrow()

preview: