1 import tkinter as tk
2 import time
3
4 # 创建主窗口
5 window = tk.Tk()
6 window.title('进度条')
7 window.geometry('630x150')
8
9 # 设置下载进度条
10 tk.Label(window, text='下载进度:', ).place(x=50, y=60)
11 canvas = tk.Canvas(window, width=465, height=22, bg="white")
12 canvas.place(x=110, y=60)
13
14
15 # 显示下载进度
16 def progress():
17 # 填充进度条
18 fill_line = canvas.create_rectangle(1.5, 1.5, 0, 23, width=0, fill="green")
19 x = 500 # 未知变量，可更改
20 n = 465 / x # 465是矩形填充满的次数
21 for i in range(x):
22 n = n + 465 / x
23 canvas.coords(fill_line, (0, 0, n, 60))
24 window.update()
25 time.sleep(0.02) # 控制进度条流动的速度
26
27 # 清空进度条
28 fill_line = canvas.create_rectangle(1.5, 1.5, 0, 23, width=0, fill="white")
29 x = 500 # 未知变量，可更改
30 n = 465 / x # 465是矩形填充满的次数
31
32 for t in range(x):
33 n = n + 465 / x
34 # 以矩形的长度作为变量值更新
35 canvas.coords(fill_line, (0, 0, n, 60))
36 window.update()
37 time.sleep(0) # 时间为0，即飞速清空进度条
38
39
40 btn_download = tk.Button(window, text='启动进度条', command=progress)
41 btn_download.place(x=400, y=105)
42
43 window.mainloop()
