a590687

@echo off&setlocal enabledelayedexpansion
::先获取行数并把 行数较大的文本设为和t1另一个为t2
for %%a in ('sed "$=" a.txt') do (
	for %%b in ('sed "$=" b.txt') do (
		if %%a gtr %%b (
			set "t1=a.txt" 
			set "t2=b.txt" 
		) else (			
				set "t1=b.txt" 
				set "t2=a.txt"
			)
	)
)
::交叉输出t1和t2
for /f "delims=" %%i in (!t1!) do (
	set /a n+=1
	echo %%i
	for /f "tokens=1,* delims=:" %%j in ('findstr /n ".*" !t2!') do (
		if %%j equ !n! echo %%k
	)
)
pause
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