标题: 如何读取文件中的某几行到另外一个文件 [打印本页]
作者: jia332 时间: 2008-5-27 11:02 标题: 如何读取文件中的某几行到另外一个文件
读取文件test1.txt 中的第1，3，4，6，7行到test2.txt
test1 内容
port a 1
port b 2
port c 3
port d 4
port e 5
port f 6
port g 7
port h 8
port i 9
作者: huahua0919 时间: 2008-5-27 11:10
@echo off
for /f "delims=" %%i in ('findstr "1 3 4 6 7" a.txt') do (set num=%%i
>>test2.txt call,echo %%num%%
)
pause
for /f "delims=" %%i in ('findstr "1 3 4 6 7" a.txt') do (set num=%%i
>>test2.txt call,echo %%num%%
)
pause
作者: jia332 时间: 2008-5-27 11:15
谢谢huahua0919的帮助 如果我test1中的文件内容是这样
SET Port1=0
SET Port2=1
SET Port2=low
SET Port1=0
SET Port2=0
SET Port1=0
SET Port2=0
SET Port1=0
SET Port2=0
SET Port3=0
SET Port4=0
SET Port5=1
SET Port5=full
SET Port6=1
SET Port6=full
SET Port1=0
SET Port2=0
SET Port1=0
SET Port2=0
SET Port1=1
SET Port1=full
SET Port2=0
SET Port1=1
SET Port1=full
SET Port2=0
SET Port3=0
SET Port4=0
SET Port5=0
SET Port6=0
呢？
作者: HAT 时间: 2008-5-27 11:15
@echo off
setlocal enabledelayedexpansion
set row=0
type nul>"C:\test\test2.txt"
for /f "tokens=1,2* delims=:" %%a in ('findstr /n .* "C:\test\test1.txt"') do (
set /a row+=1
if !row! equ 1 (>>"C:\test\test2.txt" echo %%b)
if !row! equ 3 (>>"C:\test\test2.txt" echo %%b)
if !row! equ 4 (>>"C:\test\test2.txt" echo %%b)
if !row! equ 6 (>>"C:\test\test2.txt" echo %%b)
if !row! equ 7 (>>"C:\test\test2.txt" echo %%b)
)
setlocal enabledelayedexpansion
set row=0
type nul>"C:\test\test2.txt"
for /f "tokens=1,2* delims=:" %%a in ('findstr /n .* "C:\test\test1.txt"') do (
set /a row+=1
if !row! equ 1 (>>"C:\test\test2.txt" echo %%b)
if !row! equ 3 (>>"C:\test\test2.txt" echo %%b)
if !row! equ 4 (>>"C:\test\test2.txt" echo %%b)
if !row! equ 6 (>>"C:\test\test2.txt" echo %%b)
if !row! equ 7 (>>"C:\test\test2.txt" echo %%b)
)
作者: huahua0919 时间: 2008-5-27 11:18
那就试试HAT兄的代码
作者: bat-zw 时间: 2008-5-27 11:23
| Quote: | |
|
可简化：
@echo off&setlocal enabledelayedexpansion
for /f "delims=" %%i in (test1.txt) do (
set str=%%i
if defined str (
set /a n+=1
set _!n!=!str!
)
)
for %%i in (1 3 4 6 7) do echo !_%%i!>>test2.txt
pause>nul
[ Last edited by zw19750516 on 2008-5-27 at 11:37 AM ]for /f "delims=" %%i in (test1.txt) do (
set str=%%i
if defined str (
set /a n+=1
set _!n!=!str!
)
)
for %%i in (1 3 4 6 7) do echo !_%%i!>>test2.txt
pause>nul
作者: jia332 时间: 2008-5-27 11:29
谢谢两位高手的回复
作者: jia332 时间: 2008-5-31 10:47
HAT兄
如果是空行为什么显示的是echo is off 而不是空行
作者: HAT 时间: 2008-5-31 10:50
| Quote: | |
|
在计算1，3，4，6，7行的时候，空行是否需要计算在内？
作者: jia332 时间: 2008-5-31 11:17
要计算在内
作者: WANKOILZ 时间: 2008-5-31 12:47
借用zw兄的代码,要计算空行:
@echo off&setlocal enabledelayedexpansion
for /f "delims=" %%i in ('findstr/n ".*" test1.txt') do (
set str=%%i&set str=!str:*:=!
set/a n+=1
set _!n!=!str!
)
for %%i in (1 3 4 6 7) do echo.!_%%i!>>test2.txt
pause
for /f "delims=" %%i in ('findstr/n ".*" test1.txt') do (
set str=%%i&set str=!str:*:=!
set/a n+=1
set _!n!=!str!
)
for %%i in (1 3 4 6 7) do echo.!_%%i!>>test2.txt
pause
作者: 26933062 时间: 2008-5-31 14:29
@echo off
for %%a in (1 3 4 6 7) do set .%%a=a
for /f "tokens=1* delims=:" %%a in ('findstr/n ".*" test1.txt') do (
if defined .%%a echo.%%b
)
pause
[ Last edited by 26933062 on 2008-5-31 at 05:11 PM ]for %%a in (1 3 4 6 7) do set .%%a=a
for /f "tokens=1* delims=:" %%a in ('findstr/n ".*" test1.txt') do (
if defined .%%a echo.%%b
)
pause
作者: terse 时间: 2008-5-31 17:00
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|
楼兄笔误哦 %%i应该%%a
延迟也可以去了吧
作者: 26933062 时间: 2008-5-31 17:12
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粗心，谢提醒，以改正。
作者: jia332 时间: 2008-5-31 18:35
| Quote: | |
|
echo. 这个。就可以解决了，兄弟我又学了一招。 十分感谢大家帮助