尝试使用画布在Tkinter中显示进度条

import tkinter as tk

window = tk.Tk()
canvas = tk.Canvas(window, width=300, height=20)
canvas.pack()

def update_progress(progress):
    canvas.delete("progress")  # 清空画布上的所有进度条
    canvas.create_rectangle(0, 0, progress * 3, 20, fill="blue", tags="progress")

update_progress(0.5)  # 更新进度条到50%

import tkinter as tk

def update_progress(progress):
    canvas.delete("progress")
    canvas.create_rectangle(0, 0, progress * 3, 20, fill="blue", tags="progress")

window = tk.Tk()
canvas = tk.Canvas(window, width=300, height=20)
canvas.pack()

update_progress(0.5)

window.mainloop()