大家看一下怎样做，代码步骤

仅供参考

import time
scale = 50
print('开始下载'.center(scale, '='))
for i in range(scale+1):
    a = '*' * i
    b = '.' * (scale - i)
    c = int((i / scale) * 100)
    print('\r{}%[{}{}]'.format(c, a, b), end='')
    time.sleep(0.1)
print('\n' + '下载完成'.center(scale, '='))

import time
from tqdm import tqdm

for i in tqdm(range(100), ncols=100, ascii=' *', bar_format='{l_bar}{bar}|'):
    time.sleep(0.05)