vincentzhou

@echo off&setlocal enabledelayedexpansion
for /f "tokens=1 delims=:" %%i in ('findstr /n .* a.txt') do set num1=%%i
for /f "tokens=1 delims=:" %%i in ('findstr /n .* b.txt') do set num2=%%i
if !num1! geq !num2! ( goto start
  ) else ( 
  ren  a.txt c.txt
  ren  b.txt a.txt
  ren  c.txt b.txt
)
:start
set /a line=0
for /f "delims=" %%a in (a.txt) do (
    echo %%a 
    set /a c=0
    for /f "delims=" %%b in ('more +!line! "b.txt"') do (
    set /a c+=1 
    if !c! equ 1 echo %%b
    )
    set /a line+=1
)
pause>nul
复制代码

这个代码的缺陷在于每读取1.txt中一行都得把2.txt中内容遍历一次。但是我想不出办法让让读取2.txt的for只运行一个循环、用goto会出错。哎~~~

[ 本帖最后由 vincentzhou 于 2011-1-2 16:55 编辑 ]