批处理：如何从subrpgram跳转到主程序的出口？

问题描述

我有一个control_script.cmd，它可以按原样工作，但有点难以阅读。基本上，我想在第一个程序返回错误时退出脚本。

set text=converting something...
call %libdir%\1_convert_xlsx.cmd 
set rvalue=%errorlevel%
call :check_errorlevel !rvalue! "!text!"
if !rvalue! geq 1 goto :my_error_handler

set text=loading something...
call %libdir%\2_load_something.cmd 
set rvalue=%errorlevel%
call :check_errorlevel !rvalue! "!text!"
if !rvalue! geq 1 goto :my_error_handler

:check_errorlevel 
set rvalue=%~1
set text=%~2
echo do something with rvalue and text
exit /b 0

:my_error_handler
exit /b 1

如果我可以将if子句移到check_errorlevel部分，那就更好了

call %libdir%\1_convert_xlsx.cmd 
call :check_errorlevel %errorlevel% "converting something..."

call %libdir%\2_load_something.cmd  
call :check_errorlevel %errorlevel% "loading something..."

:check_errorlevel 
set rvalue=%~1
set text=%~2
echo do something with rvalue and text
if !rvalue! geq 1 goto :my_error_handler
exit /b 0


:my_error_handler
exit /b 1

但是在这里，我面临一个问题：：my_error_handler没有在：check_errorlevel中定义，并且我看不到任何其他方法可以直接从：check_errorlevel到我的cmd末尾。有吗？

最诚挚的问候，彼得

解决方法

％因此，在@aschipfl提示之后，我将继续下面的代码。我实际上仍然需要测试，但是我在这里感觉很好。

call %libdir%\1_convert_xlsx.cmd 
call :check_errorlevel %errorlevel% "converting something..." || goto :my_error_handler

call %libdir%\2_load_something.cmd  
call :check_errorlevel %errorlevel% "loading something..." || goto :my_error_handler

goto :all_fine

:check_errorlevel 
set rvalue=%~1
set text=%~2
echo do something with rvalue and text
if %rvalue% GEQ 1 ( set my_errorlevel = 1 ) else ( set my_errorlevel = 0 )
REM notice that this errorlevel only transfers the input-errorlevel and is not an errorlevel by itself.
exit /b %my_errorlevel%

:my_error_handler
exit /b 1

:all_fine
exit /b 0

编辑：{}至（）感谢stefano

,

这是我提到的宏样式的示例

@Echo off & Setlocal EnableExtensions EnableDelayedExpansion
rem // macro definition within delayed expansion environment requires exclaimation marks to be thrice escaped.
rem // outer For %%n loop uses If ()Else construct to capture the trailing string within the output variable at the time of expansion.
Set "CHKErr=For %%n in (1 2)Do If %%n==2 (If Not "^^^!Errorlevel^^^!"=="0" (Echo/Failed [^^^!Errorlevel^^^!] - ^^^!Output^^^!&Endlocal &Goto :EOF)Else (Echo/Success - ^^^!Output^^^!))Else Set Output="
 Call :truelabel 2> Nul
 %CHKErr%:truelabel
 Call :falselabel 2> Nul
 %CHKErr%:falselabel
 Echo/You'll never see this on fail.
Goto :Eof

:truelabel
Exit /B 0