通过更改文件名前面的前缀，重命名文件夹中的文件，从而减少了文件夹中文件的数量

import os
import re

filenames = os.listdir()


def rename(old_filename,new_filename):
    old_path = os.path.join(os.getcwd(), old_filename)
    new_path = os.path.join(os.getcwd(), new_filename)
    try:
        os.rename(old_path, new_path)
        return True
    except:
        return False

for file in filenames:
    #removing underscores if any in starting of name
    if file[0] == '_':
        length = len(file)
        newfilename = file[1:length]
        #finding integers in string (finidng in starting four letters only)
        digit = re.findall('\d+',newfilename[0:3])
        #formatting numbers with prefix zero
        y = digit[0]
        newdigit = '{:03}'.format(int(y))

        newfiletemp = newfilename.lstrip(y)

        newfile = newdigit + newfiletemp

        rename(file,newfile)

截图之前

截图后