如何在方法之后使用TKINTER给出车轮旋转的印象？

发布于 2025-01-27 00:28:21 字数 811 浏览 0 评论 0 原文

我正在尝试创建三个单独的“车轮”，以改变第一个弧的起始位置，以给人留下旋转的印象。 TKINTER将在画布上绘制第一个车轮并在1秒钟后删除它，但是随后的车轮永远不会绘制。

    from tkinter import Canvas, Tk

    tk = Tk()
    tk.geometry('500x500')

    canvas = Canvas(tk)
    canvas.pack(expand=True, fill='both')

    in_list = [1,1,1,1,1,1,1]

    arc_length = 360 / len(in_list)
    first_mvmt = arc_length / 3
    second_mvmt = arc_length * 2 / 3

    mvmt_list = [0, first_mvmt, second_mvmt]

    for mvmt in mvmt_list:
        for i in range(len(in_list)):
            start = i * arc_length
            extent = (i + 1) * arc_length
            arc = canvas.create_arc(5, 5, 495, 495, outline='white', start=start + mvmt, extent=extent)

        canvas.after(1000)
        canvas.delete('all')


    tk.mainloop()

还请原谅我的格式不佳，这是我在Stackoverflow上的第一篇文章

原文

I'm trying to create three separate 'wheels' that change the starting position of the first arc in order to give the impression of the wheel spinning. Tkinter will draw the first wheel on the canvas and delete it after 1 second, but the subsequent wheels are never drawn.

    from tkinter import Canvas, Tk

    tk = Tk()
    tk.geometry('500x500')

    canvas = Canvas(tk)
    canvas.pack(expand=True, fill='both')

    in_list = [1,1,1,1,1,1,1]

    arc_length = 360 / len(in_list)
    first_mvmt = arc_length / 3
    second_mvmt = arc_length * 2 / 3

    mvmt_list = [0, first_mvmt, second_mvmt]

    for mvmt in mvmt_list:
        for i in range(len(in_list)):
            start = i * arc_length
            extent = (i + 1) * arc_length
            arc = canvas.create_arc(5, 5, 495, 495, outline='white', start=start + mvmt, extent=extent)

        canvas.after(1000)
        canvas.delete('all')


    tk.mainloop()

Also please excuse my poor formatting, this is my first post on stackoverflow

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奢华的一滴泪 2025-02-03 00:28:21

您的外循环中只有3个项目，这不会给人留下旋转的印象...
看一个代码：

我将您的循环更改为100
添加 tk.update（）在内部循环
添加 sleep（0.05）而不是您之后（1000））

import time
from tkinter import Canvas, Tk

tk = Tk()
tk.geometry('500x500')

canvas = Canvas(tk)
canvas.pack(expand=True, fill='both')

in_list = [1,1,1,1,1,1,1]
arc_length = 360 / len(in_list)

for mvmt in range(100):
    canvas.delete('all')
    for i in range(len(in_list)):
        start = i * arc_length
        extent = (i + 1) * arc_length
        arc = canvas.create_arc(5, 5, 495, 495, outline='white', start=start + mvmt, extent=extent)
    tk.update()
    time.sleep(0.05)

tk.mainloop()

应该像这样：

Your outer loop has only 3 items in it, that is not going give the impression of a wheel spinning...
Take a look a the code below:

I changed your loop to 100
Added a tk.update() after inner loop
Added a sleep(0.05) instead of your after(1000)

import time
from tkinter import Canvas, Tk

tk = Tk()
tk.geometry('500x500')

canvas = Canvas(tk)
canvas.pack(expand=True, fill='both')

in_list = [1,1,1,1,1,1,1]
arc_length = 360 / len(in_list)

for mvmt in range(100):
    canvas.delete('all')
    for i in range(len(in_list)):
        start = i * arc_length
        extent = (i + 1) * arc_length
        arc = canvas.create_arc(5, 5, 495, 495, outline='white', start=start + mvmt, extent=extent)
    tk.update()
    time.sleep(0.05)

tk.mainloop()

it should look like this: