查找行中的第一個(gè)數(shù)據(jù)串

@echo off
:: 查找形如 input name=id value=1842 type=hidden> 的記錄中
:: 的第一個(gè)數(shù)字串
:: 通過(guò)探測(cè)每一個(gè)字符的類型來(lái)獲取，但是效率十分低下
:: code by jm 2006-10-16 CMD@XP
set num=0
setlocal enabledelayedexpansion
for /f "delims=" %%i in (input.txt) do call :intercept "%%i"
echo value=%str_%
pause
goto :eof
:intercept
set str=%1
set str=%str:~2,-2%
if not "%str%"=="" echo. "%str:~0,1%"|findstr "[0-9]">nul (
set num=1set str_=!str_!%str:~0,1%call :intercept " !str:~1! ")||(
if %num% equ 0 call :intercept " !str:~1! "
)
goto :eof
無(wú)奈何的方案，不依賴字符前后關(guān)系，會(huì)獲取 value= 后的任意值，速度非?？?
更能處理形如input type=hidden name=id VALUE=465974855 input type=hidden name=id value="1820988170">input type=hidden name=id value=1008964101>
的字符串
@echo off
setlocal enabledelayedexpansion
FOR /f "delims=" %%i in (input.txt) do (
set "t=%%i"
set "t=!t:= !"
set "t=!t:>= !"
set "t=!t:= !"
set "t=!t:|= !"
call :sub !t !
)
pause
goto :eof
:sub
if "%1" == "" exit /b
if "%F%" == "1" echo %1 set F=0
if "%1" == "value" set F=1
shift
goto sub