python GUI实现进度条 对python GUI实现完美进度条的示例详解
polyhedronx 人气:0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。
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