/zhqsystem/zhq

方案1,
:1
set/a n+=1
if exist "文件路径\%n%扩展名" copy "文件路径\%n%扩展名" 新文件
goto:1
方案2,
for ..%%i..... (
set "_=%%~ni"
for /l %%n in (0,1,100)do call set "_=0%%_%%"
call set "##%%_:~-100%%=%%~nxi"
)

for /f "tokens=1,* delims==" %%i in ('set ##')do (
合并命令 变量为%%i 对应名称%%j
)