问题描述

before：

after：

代码：

# -*- coding: utf-8 -*-
import os
path = 'E:/CSRNet-pytorch-master/data/original/shanghaitech/part_B_final/train_data/images'
num = 1
for file in os.listdir(path):
    os.rename(os.path.join(path,file),os.path.join(path,'IMG_'+str(num)+".jpg"))
    num+=1