对python GUI实现完美进度条的示例详解

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。