批量重命名神器

http://blog.csdn.net/txz317/article/details/52326041

存成bat，放到要改名的文件夹下

@echo off&setlocal EnableDelayedExpansion 
set a=1 
set prename=测试
for /f "delims=" %%i in ('dir /b *.jpg') do ( 
	if not "%%~ni"=="%~n0" ( 
		if !a! LSS 10 (ren "%%i" "!prename!_0!a!.jpg") else ren "%%i" "!prename!_!a!.jpg" 
		set/a a+=1 
	) 
)