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。

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()

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萬仟网。

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