
CODE: [Copy to clipboard][ Last edited by Hanyeguxing on 2010-6-8 at 20:09 ]@echo off&setlocal enabledelayedexpansion
set a=abcdef
set b=3
echo.方法1:!a:~%b%^,%b%!
set c=!a:~%b%,%b%!
echo.方法2:!c!
pause
CODE: [Copy to clipboard]for %%a in (%b%) do (
set /a ab=%%a
if !ab! GTR 8 (
set /a ab1="(!ab!-5)"*2-1 & set /a ab2="(!ab!-5)"*2
for /f "tokens=1,2" %%l in ("!ab1! !ab2!") do (set ab3=!abc:~%%l,%%m!)
>>1.txt echo !ab1! !ab2! !ab3!
)
)
| 欢迎光临 中国DOS联盟论坛 (http://cndos.fam.cx/forum/) | Powered by Discuz! 2.5 |