由於我不知道您正在查看哪個確切的軟件,我將在Winodws 7 x64上引用Adobe Reader。
答案:
下面的例子將輸出所有父內的子密鑰。
for /f "delims=" %%A in ('reg query "HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Adobe\Acrobat Reader"') do if not "%%~A"=="" echo.%%~nxA
輸出:
9.5
10.0
11.0
樣品:
從那裏,它也只是記住規模最大,在值數據的下一個查詢中使用它的問題。
@echo off
setlocal EnableDelayedExpansion
set "xVersion="
set "xPath="
:: Retrieve Greatest Version
for /f "delims=" %%A in ('reg query "HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Adobe\Acrobat Reader"') do (
if not "%%~A"=="" if "%%~nxA" GTR "!xVersion!" set "xVersion=%%~nxA"
)
:: Validate Version
if "%xVersion%"=="" goto :eof
:: Retrieve Install Path
for /f "tokens=1,2,*" %%A in ('reg query "HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Adobe\Acrobat Reader\%xVersion%\Installer" /v Path') do (
set "xPath=%%~C"
)
:: Show Results
echo.%xPath%
endlocal
輸出:
C:\Program Files (x86)\Adobe\Reader 10.0\
獎勵:
如果你想驗證該%%~nxA
是多少,這裏是我的批處理程序。
::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
:IsNumber <xReturn> <xInput> [xDelims]
:: Return true if the input is a base 10 number, else return false.
:::: Does not allow any seperators unless specified by xDelims. ,.[tab][space]
setlocal
if not "%~2"=="" set "xResult=true"
for /f "tokens=1 delims=1234567890%~3" %%n in ("%~2") do set xResult=false
endlocal & if not "%~1"=="" set "%~1=%xResult%"
goto :eof
:: Usage Example.
:: The variable xResult will be set to true if %%~nxA is a decimal number.
call :IsNumber xResult "%%~nxA" "."