简单实现打印进度条

import time
# 打印进度条
def progress_bar(new_size, sum_size):
    """根据每次输入的大小判断目前的百分比"""
    bar = int(new_size/sum_size * 100)
    bar_num = bar//5
    print("\r%s|%s%%"%("#"*bar_num,bar),end="")

for i in range(1,101):
    time.sleep(0.1)
    progress_bar(i,100)