在用python做一個GUI界面時，想搞一個進度條實時顯示下載進度，但查閱很多博客，最后的顯示效果都類似下面這種：

這種效果在CMD界面看著還可以，但放到圖形界面時就有點丑了，所以我用Canvas重新做了一個進度條，完美滿足了我的要求，看著也比較舒服。

import timeimport threadingfrom 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') # 進度條sum_length = 630canvas_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)# 按鈕button_start = Button(top, text='開始', 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()

顯示效果如下：

以上這篇對python GUI實現完美進度條的示例詳解就是小編分享給大家的全部內容了，希望能給大家一個參考，也希望大家多多支持武林站長站。