回复 3# yonghuairuogu
比较猥琐的办法:- @echo off
- (for /f "delims=" %%a in (a.txt) do (
- set/a"n+=1,m=n%%20,1/((m-1)*(m-2)*(m-3)*(m-4)*(m-5)*(m-6))"&&echo,%%a
- ))>b.txt 2>nul
- pause
复制代码 或者这样:- @echo off & setlocal enabledelayedexpansion
- set "n=-1"
- (for /f "delims=" %%a in (a.txt) do (
- set /a n+=1,m=n%%20
- if !m! geq 6 echo,%%a
- ))>b.txt
- pause
复制代码
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