按楼主的意思，a.txt中第n行应该是与b.txt中第n行是对应的，其实论坛有类似这样的贴子，代码如下：
1、变量赋值法（不适合超大文本）：- @echo off&setlocal enabledelayedexpansion
- for %%a in (a b) do (
- set /a num+=1,n=0
- for /f "delims=" %%b in (%%a.txt) do set /a n+=1&set "!num!-!n!=%%b"
- )
- for /l %%a in (1,1,%n%) do copy /y "!1-%%a!" "!2-%%a!"
2、依次读取法（先读a.txt第一行，再读b.txt第二行，再返回读a.txt第二行。。。）- @echo off
- set /a n=-1
- :begin
- set /a n+=1
- if %n% neq 0 set "sk=skip=%n%"
- for /f "%sk% delims=" %%a in (a.txt) do set "a=%%a"&goto next
- :next
- for /f "%sk% delims=" %%a in (b.txt) do if "%%a" neq "" copy /y "%a%" "%%a"&goto begin
[ 本帖最后由 batman 于 2009-11-7 14:18 编辑 ] | 
发表于 2009-11-6 23:59
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