批处理把一文本的首行和尾行并接为一行

ieutk

   一个文本文件内容如下,把它们的第一行和最后一行并接成一行显示在屏幕上

1. 12345
   
2. dw5v
   
3. ti7
   
4. dfg3
   
5. ds120
   
6. ds437
   
7. dw025
   
8. 32123
   
9. aseth
   
10. ep09
    
11. s36
    
12. 567
    
13. 54dc汉
    
14. d36国
    
15. 33s
    
16. 人中
    
17. d2
    
18. 6789

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梦想种子

1. @echo off
   
2. set /p a=<a.txt
   
3. for /f "delims=" %%i in (a.txt) do set b=%%i
   
4. echo %a%%b%
   
5. pause>nul

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mokmao

不用"delims="也可以得到结果

xiaoxx

如果尾行是空行。
那么合并结果会出错。

xiaoxx

@echo off
set /p a=<abc.txt
setlocal EnableDelayedExpansion
for /f %%i in ('findstr /n .* abc.txt') do (set hhh=%%i)
set "hhh=!hhh:*:=%a%!"
echo !hhh!
pause>nul

但首行和尾行不能都为空（空格也算空）否则仅仅会输出echo的状态。等同于一个单独的echo.

keen

1. @echo off&setlocal enabledelayedexpansion
   
2. for /f "delims=" %%i in (a.txt) do (
   
3.     set a=%%i
   
4.     set /a n+=1
   
5.     if !n!==1 set o=!a!
   
6. )
   
7. echo %o%%a%&pause>nul

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sjzong

其实主要是文本中，第一行和最后一行不能使空的！空行会跳过的！

1. @echo off
   
2. setlocal enabledelayedexpansion
   
3. for /f "delims= " %%a in (a.txt) do (set/a num+=1&set !num!=%%a)
   
4. echo !1!!%num%!

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[ 本帖最后由 sjzong 于 2009-4-25 18:22 编辑 ]

battab

回复 1# ieutk

1. @echo off&setlocal enabledelayedexpansion
   
2. for /f %%i in (1.txt) do (
   
3.         set str=!str!%%i)
   
4. echo %str:~,5%%str:~-4%
   
5. pause>nul

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还不通用，只是个思路，仅符合题例，有待完善。

522235677

回复 8# battab


    你不如直接写个

1. echo 123456789

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sbjugt

@echo off
for /f %%i in (a.txt) do (set a=%%i)

for /f %%i in (a.txt) do (set b=%%i&&goto :b)

:b
echo %b%%a%
pause

zh_1452

1. @echo off
   
2. cd..\..
   
3. cd /d f:\.&type nul>1.txt
   
4. @echo off
   
5. set str=12345dw5vti7dfg3ds120ds437dw02532123asethep09s3656754dc汉d36国33s人中d26789
   
6. echo var=%str:~0,5%
   
7. echo %str:~0,5%>f:\1.txt
   
8. pause
   
9. @echo off
   
10. cd..\..
    
11. cd /d f:\.&type nul>2.txt
    
12. @echo off
    
13. set str=12345dw5vti7dfg3ds120ds437dw02532123asethep09s3656754dc汉d36国33s人中d26789
    
14. set var=%str:~-4%
    
15. echo %str:~-4%
    
16. echo %str:~-4%>>f:\2.txt
    
17. 
    
18. pause
    
19. @echo off
    
20. cd..\..
    
21. cd /d f:\.&type nul>3.txt&type 1.txt>3.txt%type 2.txt>3.txt
    
22. start "" f:\3.txt
    
23. pause

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shelluserwlb

1. @echo off
   
2. for /f %%i in (a.txt) do (
   
3.     if %%i neq "" (set "str1=%%i" & goto :next)
   
4. )
   
5. :next
   
6. for /f %%i in (a.txt) do (
   
7.     if %%i neq "" set "str2=%%i"
   
8. )
   
9. echo %str1%%str2%
   
10. pause>nul

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尘丶

1. 
   
2. @echo off&setlocal enabledelayedexpansion
   
3. set /p a=<a.txt
   
4. for /f %%n in (a.txt) do (
   
5.     set b=%%n
   
6.   
   
7. )
   
8. echo %a%!b!
   
9. pause

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437153

@echo off&setlocal enabledelayedexpansion
for /f "tokens=1,2 delims=:" %%i in ('type 1.txt^|findstr /n .') do (
        set/a n+=1
        set h!n!=%%j
)
set/a m=%n%-(%n%-1)
echo:!h%m%! !h%n%!

尘丶

1.

1. @echo off&setlocal enabledelayedexpansion
   
2. for /f "delims=" %%a in (1.txt) do (
   
3. set s=%%a
   
4. set /a n+=1
   
5. if !n!==1 set /p=%%a<nul
   
6. echo;%%a>nul
   
7. )
   
8. echo;!s!
   
9. pause

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2.

1. @echo off&setlocal enabledelayedexpansion
   
2. for /f "delims=" %%a in (1.txt) do set /p n=<1.txt&set s=%%a
   
3. echo;!n!!s!
   
4. pause

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3.

1. @echo off&setlocal enabledelayedexpansion
   
2. (for /l %%a in (1,1,20) do set /p n%%a=)<1.txt
   
3. echo;!n1!!n18!
   
4. pause

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