qixiaobin0715

回复 1# netdzb
截取前10位：echo %ifo:~0,10%
截取后10位：echo %ifo:~-10%

qixiaobin0715

@echo off
set ifo=d6b278efc3f372ece0c93d2b7526510b
setlocal enabledelayedexpansion
for /l %%a in (0,1,22) do (
echo !ifo:~%%a,10!
)
pause
复制代码

qixiaobin0715

call echo %%ifo:~%n%,10%%

qixiaobin0715

回复 7# netdzb
好像是预处理机制，我也不太懂

qixiaobin0715

call实现临时变量延迟