- @echo off&setlocal enabledelayedexpansion
- (for /f "delims=" %%a in (a.txt) do (
- set /a n+=1
- set "str=%%a"
- if !n! lss 10 (echo,!str:~,-1!!n!
- ) else (
- if !n! lss 100 (echo,!str:~,-2!!n!
- ) else if !n! lss 1000 echo,!str:~,-3!!n!
- )
- ))>b.txt
- pause
复制代码 a.txt最多999行 |