python - 我如何在 tkinter 时使用 Work

Question

运行 tkinter 的函数卡住。我想使用 Tkinter 窗口运行该进程。运行进度条时我想使用 tkinter window，但我不能因为它卡住了 tkinter。如何在 time.sleep(10) 或其他函数工作时使用根窗口

import tkinter.ttk as ttk
import tkinter as tk
import time

progress = 0


def loading(window=None):
    mpb = ttk.Progressbar(window, orient="horizontal", length=200, mode="determinate")
    mpb.place(y=0, x=0)
    mpb["maximum"] = 100
    mpb["value"] = progress
    print(progress)


def incrase():
    global progress
    print(progress)
    progress += 1
    time.sleep(10)  # for example, a function works here and tkinter freezes
    loading()       # i don't want tkinter freezes


root = tk.Tk()
loading(root)
ttk.Button(root, text='increase', command=incrase).place(x=0, y=25, width=90)

root.mainloop()

感谢您的解答

Answer 1

您应该使用after()您可以使用它安排在一段时间后调用 loading() 函数。

程序

以下是如何在程序中使用它:

import tkinter.ttk as ttk
import tkinter as tk
import time

progress = 0


def loading(window):
    mpb = ttk.Progressbar(window, orient="horizontal", length=200, mode="determinate")
    mpb.place(y=0, x=0)
    mpb["maximum"] = 100
    mpb["value"] = progress
    print(progress)


def incrase():
    global root
    global progress
    print(progress)
    progress += 1
    root.after(10, loading(root))  # schedule loading() 



root = tk.Tk()
loading(root)
ttk.Button(root, text='increase', command=incrase).place(x=0, y=25, width=90)

root.mainloop()

演示

上述运行程序截图: