我想打印标签的宽度和高度 但结果始终是356 156
import tkinter as tk
root = tk.Tk()
root.geometry("500x500")
label = tk.Label(root, text="Drag me!", width=50, height=8)
label.pack()
root.update()
width = label.winfo_width()
height = label.winfo_height()
print(width, height)
root.mainloop()