DOS(bat)字符串替换原理

把字符串 “c:/test/1”  中的...

把字符串 “c:/test/1”  中的  “/” 全部替换成 “//”  的原理:

(假设 “C:/TEST/1” 字符串已存在 VAR 变量中:)

C:/WINDOWS>set “var=C:/TEST/1”

(将 var 变量中的字符串里 “/” 字符全部替换成 “//”)

C:/WINDOWS>set “var=%var:/=//%”

(显示 var 变量中的内容)

C:/WINDOWS>echo %var%
C://TEST//1

结果为:C://TEST//1 ,已全部替换完成。

下面给几个其他网友给的例子

文件字符串替换

@echo offecho ***** Replace "abcd" as "ABCD" *****set strFilePath=C:\Users\Leez\Desktop\TestBat\TestSource.txtset strOld=abcdset strNew=ABCDsetlocal enabledelayedexpansionfor /f "tokens=*" %%i in (%strFilePath%) do (  set "var=%%i"  if not !var!.==. (    set "var=!var:%strOld%=%strNew%!"    echo !var!!>>%strFilePath%.bk  ))move /y %strFilePath%.bk %strFilePath%pause

例子二:

@echo off setlocal enabledelayedexpansion set file= set /p file= 请输入要操作的文件名称(包括扩展名): set "file=%file:"=%" for %%i in ("%file%") do set file=%%~fi echo. set replaced= set /p replaced= 请输入即将被替换的内容: echo. set all= set /p all= 请输入替换字符串: for /f "delims=" %%i in ('type "%file%"') do ( set str=%%i set "str=!str:%replaced%=%all%!" echo !str!>>"%file%"_tmp.txt ) copy "%file%" "%file%"_bak.txt >nul 2>nul move "%file%"_tmp.txt "%file%" start "" "%file%"

笔者将它更改一下
把16改为17

@echo off setlocal enabledelayedexpansion set file=c:\Program Files\hndsclient\ds\GetFile.iniset "file=%file:"=%" for %%i in ("%file%") do set file=%%~fi echo. set replaced=16 echo. set all=17for /f "delims=" %%i in ('type "%file%"') do (   set str=%%i   set "str=!str:%replaced%=%all%!"   echo !str!>>"%file%"_tmp.txt ) copy "%file%" "%file%"_bak.txt >nul 2>nul move "%file%"_tmp.txt "%file%" start "" "%file%"

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