progressbar2库是python的一个高级终端进度条库

　　1.说明：
　　=====
　　1.1 环境：
　　华为笔记本电脑、深度deepin-linux操作系统、python3.8和微软vscode编辑器。
　　1.2 相关地址：https://github.com/WoLpH/python-progressbar  https://progressbar-2.readthedocs.io/en/latest/index.html
　　2 安装：
　　=====pip install progressbar2 #本机安装，请注意有一个2 sudo pip3.8 install progressbar2
　　3 进度条1：
　　========
　　3.1 代码1：#方法一：默认＂#＂ import time from progressbar import * total = 1000 #可自定义任务，然后安排进度条 #引起时间 def dosomework():     time.sleep(0.01) progress = ProgressBar() for i in progress(range(1000)):     dosomework()
　　3.2 效果图1
　　3.3 高级一点点，对符号和颜色进行修改，可自定义，代码2：import  time from progressbar import * total = 1000 def dosomework():     time.sleep(0.01) #widgets = [＂Progress: ＂,Percentage(), ＂ ＂, Bar(＂#＂),＂ ＂, Timer(),＂ ＂, ETA(), ＂ ＂, FileTransferSpeed()] #Bar的符号，可以自定义，这是黑白的 #widgets = [＂Progress: ＂,Percentage(), ＂ ＂, Bar(＂>＂),＂ ＂, Timer(),＂ ＂, ETA(), ＂ ＂, FileTransferSpeed()] #颜色，可自定义：彩色：依次是36,35,34,33,32,31 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()
　　3.4 效果图2：
　　3.5 高级：局部颜色自定义
　　3.5.1 代码3：import  time import progressbar #自定义 widgets = [     ＂Colorful example＂,     progressbar.Percentage(),     progressbar.Bar(marker=＂@＂), ] bar = progressbar.ProgressBar(widgets=widgets, max_value=100).start() for i in range(100):     # do something     time.sleep(0.1)     bar.update(i + 1) bar.finish()
　　3.5.2 效果图3
　　3.6 组合高级一点：
　　3.6.1 代码4：import  time import progressbar widgets = [     ＂Colorful example＂,     progressbar.Percentage(),     progressbar.Bar(marker=progressbar.AnimatedMarker(         #可自定义：fill=＂x＂,         fill=＂█＂,         fill_wrap=＂{}＂,         marker_wrap=＂{}＂,     )), ] bar = progressbar.ProgressBar(widgets=widgets, max_value=100).start() for i in range(100):     # do something     time.sleep(0.1)     bar.update(i + 1) bar.finish()
　　3.6.2 效果图4：
　　4 漂浮进度条：
　　==========
　　4.1 代码5：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()
　　4.2 效果图5
　　5 顶级：
　　====
　　5.1 两头一起来：
　　5.1.1 代码：import  time import progressbar widgets = [     progressbar.Bar(＂>＂), ＂ ＂,     progressbar.ETA(), ＂ ＂,     progressbar.ReverseBar(＂<＂), ] bar = progressbar.ProgressBar(widgets=widgets, max_value=1000).start() for i in range(100):     # do something     bar.update(10 * i + 1)     time.sleep(0.01) bar.finish()
　　5.1.2 效果图：
　　5.2 豪华顶级型：
　　5.2.1 代码：import  time import progressbar import random  markers = [         ＂█＂,  # Done         ＂#＂,  # Processing         ＂.＂,  # Scheduling         ＂ ＂                   # Not started     ] widgets = [progressbar.MultiRangeBar(＂amounts＂, markers=markers)] amounts = [0] * (len(markers) - 1) + [25]  with progressbar.ProgressBar(widgets=widgets, max_value=10).start() as bar:     while True:         incomplete_items = [             idx             for idx, amount in enumerate(amounts)             for i in range(amount)             if idx != 0         ]         if not incomplete_items:             break         which = random.choice(incomplete_items)         amounts[which] -= 1         amounts[which - 1] += 1          bar.update(amounts=amounts, force=True)         time.sleep(0.02)  #附注下面各式各样的，先注释掉，以备自己选用  ＂＂＂ bar = progressbar.ProgressBar(widget_kwargs=dict(fill=＂█＂)) for i in bar(range(200)):     time.sleep(0.02)  ＂＂＂   ＂＂＂ widgets = [＂Wheels: ＂, progressbar.AnimatedMarker(markers=＂◐◓◑◒＂)] bar = progressbar.ProgressBar(widgets=widgets) for i in bar((i for i in range(24))):     time.sleep(0.1) ＂＂＂  ＂＂＂ #fill可以自定义 bar = progressbar.ProgressBar(widgets=[     progressbar.Bar(         marker=progressbar.AnimatedMarker(fill=＂#＂),     ), ]) for i in bar(range(15)):     time.sleep(0.1) ＂＂＂  ＂＂＂ widgets = [＂Processed: ＂, progressbar.Counter(＂Counter: %(value)05d＂),             ＂ lines (＂, progressbar.Timer(), ＂)＂] bar = progressbar.ProgressBar(widgets=widgets) for i in bar((i for i in range(15))):     time.sleep(0.1) ＂＂＂   ＂＂＂ widgets = [＂Balloon: ＂, progressbar.AnimatedMarker(markers=＂.oO@* ＂)] bar = progressbar.ProgressBar(widgets=widgets) for i in bar((i for i in range(24))):     time.sleep(0.1)  ＂＂＂  ＂＂＂ widgets = [＂Arrows: ＂, progressbar.AnimatedMarker(markers=＂←↖↑↗→↘↓↙＂)] bar = progressbar.ProgressBar(widgets=widgets) for i in bar((i for i in range(24))):     time.sleep(0.1) ＂＂＂  ＂＂＂ widgets = [＂Arrows: ＂, progressbar.AnimatedMarker(markers=＂◢◣◤◥＂)] bar = progressbar.ProgressBar(widgets=widgets) for i in bar((i for i in range(24))):     time.sleep(0.1)  ＂＂＂
　　5.2.2 效果图：
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