@echo off
:: 把两个文件中的不同之处提取到某个文件中去
::
cd.>3.txt
for /f "tokens=1* delims=:" %%i in ('findstr /n . 1.txt') do (
for /f "tokens=1* delims=:" %%x in ('findstr /n . 2.txt') do (
if %%i equ %%x if not "%%j"=="%%y" (>>3.txt echo 1:%%j>>3.txt echo 2:%%y>>3.txt echo.)
)
)