awk

@echo off
setlocal enabledelayedexpansion
set temp=abcd99efghijklmn
set a=4
set b=2
set yy=!temp:~%a%,%b%!
echo !yy!
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awk

回复 3# xiaoyang1141

@echo off
setlocal enabledelayedexpansion
set temp=abcd99efghijklmn
set a=4
set b=2
call set yy=%%temp:~!a!,!b!%%
echo !yy!
复制代码