是的，我们可以在String中找到subString:

echo.%data% | FINDSTR /I "POS">Nul && (SET var=POS) || (SET noVar="variable not found")

echo.%data% | FINDSTR /I "TD1">Nul && (SET var=TD1) || (SET noVar="variable not found")

GOTO %var%

:POS   
echo processes inside POS  
GOTO END

:TD1   
echo processes inside TD1

:END

建立在@user839791的答案上，但我又添加了一些东西。

@echo off
rem --Set variable below--
set var=condition

rem --Uncomment below line to display contents of variable--
::echo The variable is %var%

rem --Change condition to desired string below--
ECHO.%var%| FIND /I "condition">Nul && (  
  rem --Occurs if the string is found--
  Echo.Variable is "condition"
  color C
  pause
) || (
  rem --Occurs if the string isn't found--
  Echo.Variable is not "condition"
  color A
  pause
)

对我来说最好的方法是:

call :findInString "HelloWorld" "World"

:findInString
ECHO.%1 | FIND /I %2>Nul && ( 
  Echo.Found
) || (
  Echo.Not found
)

ECHO %String%| FINDSTR /C:"%Substring%" && (Instructions)

是的，我们可以在String中找到subString:

echo.%data% | FINDSTR /I "POS">Nul && (SET var=POS) || (SET noVar="variable not found")

echo.%data% | FINDSTR /I "TD1">Nul && (SET var=TD1) || (SET noVar="variable not found")

GOTO %var%

:POS   
echo processes inside POS  
GOTO END

:TD1   
echo processes inside TD1

:END

我通常是这样做的:

Echo.%1 | findstr /C:"%2">nul && (
    REM TRUE
) || (
    REM FALSE
)

例子:

Echo.Hello world | findstr /C:"world">nul && (
    Echo.TRUE
) || (
    Echo.FALSE
)

Echo.Hello world | findstr /C:"World">nul && (Echo.TRUE) || (Echo.FALSE)

输出:

TRUE
FALSE

我不知道这是不是最好的办法。