Python之控制台进度条实现

进度条一

源码实现

import sys
import time


def a1():
    for i in range(1, 101):
        print('\r', end="")
        print("进度: {}%: ".format(i), "||" * (i // 2), end="")
        sys.stdout.flush()
        time.sleep(0.05)

if __name__ == '__main__':
    a1()

效果图

进度条二

源码实现

import time


def a2():
    scale = 50
    start = time.perf_counter()
    for i in range(scale + 1):
        a = "*" * i
        b = "." * (scale - i)
        c = (i / scale) * 100
        dur = time.perf_counter() - start
        print("\r{:^3.0f}%[{}->{}]{:.2f}s".format(c, a, b, dur), end="")
        time.sleep(0.1)


if __name__ == '__main__':
    a2()

效果图

进度条三

安装模块

pip install tqdm

源码实现

import time
from tqdm import tqdm


def a3():
    time.sleep(5)
    for i in tqdm(range(1, 101)):
        # io的操作
        time.sleep(0.1)
    time.sleep(1)


if __name__ == '__main__':
    a3()

效果图

进度条四

安装模块

pip install progress

源码实现

import time
from progress.bar import Bar


def a4():
    b = Bar("下载", max=100)
    for item in range(100):
        b.next()
        time.sleep(1)
        b.finish()


if __name__ == '__main__':
    a4()

注意事项：

• 在PyCharm中的控制台是看不到效果的。只有在cmd才可以。

效果图

进度条五

安装模块

pip install alive_progress

源码实现

import time
from alive_progress import alive_bar


def a5():
    time.sleep(5)
    a = range(100)
    with alive_bar(len(a)) as bar:
        for _ in a:
            bar()
            time.sleep(0.3)


if __name__ == '__main__':
    a5()

效果图

可视化进度条

安装模块

pip install PySimpleGUI

源码实现

import time
import PySimpleGUI as ui

def a6():
    a = [i for i in range(1, 9)]
    for i, item in enumerate(a):
        ui.one_line_progress_meter("下载", i + 1, len(a), '下载')
        time.sleep(1)


if __name__ == '__main__':
    a6()

效果图