本文实例讲述了Python使用progressbar模块实现的显示进度条功能。分享给大家供大家参考,具体如下:
progressbar安装:
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pip install progressbar
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用法一
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# -*- coding=utf-8 -*-
import time
from progressbar import *
total = 1000
def dosomework():
time.sleep( 0.01 )
progress = ProgressBar()
for i in progress( range ( 1000 )):
dosomework()
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显示效果:
5% |### |
100% |#########################################################################|
用法二
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# -*- coding=utf-8 -*-
from __future__ import division
import sys, time
from progressbar import *
total = 1000
def dosomework():
time.sleep( 0.01 )
pbar = ProgressBar().start()
for i in range ( 1000 ):
pbar.update( int ((i / (total - 1 )) * 100 ))
dosomework()
pbar.finish()
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显示效果:
39% |############################## |
100% |#############################################################################|
用法三
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# -*- coding=utf-8 -*-
import time
from progressbar import *
total = 1000
def dosomework():
time.sleep( 0.01 )
widgets = [ 'Progress: ' ,Percentage(), ' ' , Bar( '#' ), ' ' , Timer(),
' ' , ETA(), ' ' , FileTransferSpeed()]
pbar = ProgressBar(widgets = widgets, maxval = 10 * total).start()
for i in range (total):
# do something
pbar.update( 10 * i + 1 )
dosomework()
pbar.finish()
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显示效果:
Progress: 3% |### | Elapsed Time: 0:00:15 ETA: 0:09:02 919.67 B/s
Progress: 100% |###################################################################################| Elapsed Time: 0:10:10 Time: 0:10:10 917.42 B/s
widgets可选参数含义:
'Progress: ' :设置进度条前显示的文字
Percentage() :显示百分比
Bar('#') : 设置进度条形状
ETA() : 显示预计剩余时间
Timer() :显示已用时间
希望本文所述对大家Python程序设计有所帮助。
原文链接:https://blog.csdn.net/dcrmg/article/details/79525167