在用python做一个gui界面时，想搞一个进度条实时显示下载进度，但查阅很多博客，最后的显示效果都类似下面这种：
这种效果在cmd界面看着还可以，但放到图形界面时就有点丑了，所以我用canvas重新做了一个进度条，完美满足了我的要求，看着也比较舒服。
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import time
import threading
from tkinter import *
def update_progress_bar():
for percent in range(1, 101):
hour = int(percent/3600)
minute = int(percent/60) - hour*60
second = percent % 60
green_length = int(sum_length * percent / 100)
canvas_progress_bar.coords(canvas_shape, (0, 0, green_length, 25))
canvas_progress_bar.itemconfig(canvas_text, text='%02d:%02d:%02d' % (hour, minute, second))
var_progress_bar_percent.set('%0.2f %%' % percent)
time.sleep(1)
def run():
th = threading.thread(target=update_progress_bar)
th.setdaemon(true)
th.start()
top = tk()
top.title('progress bar')
top.geometry('800x500+290+100')
top.resizable(false, false)
top.config(bg='#535353')
# 进度条
sum_length = 630
canvas_progress_bar = canvas(top, width=sum_length, height=20)
canvas_shape = canvas_progress_bar.create_rectangle(0, 0, 0, 25, fill='green')
canvas_text = canvas_progress_bar.create_text(292, 4, anchor=nw)
canvas_progress_bar.itemconfig(canvas_text, text='00:00:00')
var_progress_bar_percent = stringvar()
var_progress_bar_percent.set('00.00 %')
label_progress_bar_percent = label(top, textvariable=var_progress_bar_percent, fg='#f5f5f5', bg='#535353')
canvas_progress_bar.place(relx=0.45, rely=0.4, anchor=center)
label_progress_bar_percent.place(relx=0.89, rely=0.4, anchor=center)
# 按钮
button_start = button(top, text='开始', fg='#f5f5f5', bg='#7a7a7a', command=run, height=1, width=15, relief=groove, bd=2, activebackground='#f5f5f5', activeforeground='#535353')
button_start.place(relx=0.45, rely=0.5, anchor=center)
top.mainloop()
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显示效果如下：
以上这篇对python gui实现完美进度条的示例详解就是小编分享给大家的全部内容了，希望能给大家一个参考，也希望大家多多支持服务器之家。
原文链接：https://blog.csdn.net/polyhedronx/article/details/82291189