youxi01

测试代码：

@echo off&setlocal enabledelayedexpansion
for /f "delims=" %%a in (a.txt) do (
        set "IP="
	for %%i in (%%a) do (
		if %%i LSS A if %%i GTR 0 set IP=!ip!  %%i
	)
	echo !ip:~2!>>Res.txt
)
echo 完成，结果保存在res.txt中.
pause
复制代码