虚实进度条

import sys
import time


def progress_bar():
    for i in range(1, 101):
        print("\r", end="")
        print("进度: ", "■" * (i // 2) + '□' * (50-(i // 2)), "{}%".format(i), end="")
        sys.stdout.flush()
        time.sleep(0.1)


if __name__ == '__main__':
    progress_bar()