（Tkinter）试图在循环中更新进度条值但程序崩溃了？

Question

我只想在单击按钮时填充进度条，但每次单击按钮时它都会崩溃，而且我的控制台没有任何错误

from tkinter import *
from tkinter.ttk import Progressbar
from tkinter import ttk
from time import sleep

window = Tk()
window.title("Gui Testing")
window.geometry("350x200")

style = ttk.Style()
style.theme_use("default")
style.configure("black.Horizontal.TProgressbar",background="black")
bar = Progressbar(window,length=200,style="black.Horizontal.TProgressbar")
bar["value"] = 0
bar.grid(column=0,row=0)

def prog():
    i = 0
    while i <= 100:
        sleep(.5)
        i = i + 1
        bar["value"] = i
btn = Button(text="Click",command=prog)
btn.grid(column=0,row=1)

window.mainloop()

Answer 1

尝试设置：

ttk.Progressbar(window,length=200,style="black.Horizontal.TProgressbar", mode="determinate")

（Tkinter）试图在循环中更新进度条值但程序崩溃了？

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