使用python对文件批量改名字

话不多说，直接上代码

import os

folderName='./base/'

flag=1


dirList=os.listdir(folderName)
for name in dirList:
    print(name)
    if flag==1:
        newName='test_'+name
    elif flag==2:
        index=len('test_')
        newName=name[index:]
    print(newName)

os.rename(folderName+name, folderName+newName)