taofan712

@echo off
setlocal enabledelayedexpansion
for /f "delims=" %%a in (a.txt) do (
	if not defined line ( set line=%%a) else (
		if "%%a"=="002king|3270501" echo;!line!
		if "%%a"=="0410zxasqw|lsk521" echo;!line!
		if "%%a"=="107559797|7758521" echo;!line!
		set line=%%a
	)
)
pause
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taofan712

回复 7# Rasm

@echo off & setlocal enabledelayedexpansion
(for /f "delims=" %%a in (a.txt) do (
	if not defined line ( set line=%%a) else (
		for /f "delims=" %%b in (b.txt) do if "%%a"=="%%b" echo;!line!
		set line=%%a
	)
))>c.txt
pause
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如果指定对比的行比较多，可以放进b.txt