Question

我有一个批处理文件，我想向用户显示该文件中的进程。我已经创建了包含Operation和Status标头的小表。每个表都用于特定的命令/行。在该行运行后，我打印相应的表，清除屏幕并打印具有更新状态的新表。所以你看起来很好看。这是代码：

@echo off

REM   Process started
goto zeroth
timeout /t 1 /nobreak > NUL
REM   do some work. first operation is done
goto first
timeout /t 1 /nobreak > NUL
REM   do some work. second operation is done
goto second
REM ...

:zeroth
cls
echo    Operation                               Status
echo ====================================================
echo  * op1                                     Waiting
echo  * op2                                     Waiting
echo  * op3                                     Waiting
echo  * op4                                     Waiting
echo ====================================================
echo.

:first
cls
echo    Operation                               Status
echo ====================================================
echo  * op1                                     Done
echo  * op2                                     Waiting
echo  * op3                                     Waiting
echo  * op4                                     Waiting
echo ====================================================
echo.

:second
cls
echo    Operation                               Status
echo ====================================================
echo  * op1                                     Done
echo  * op2                                     Done
echo  * op3                                     Waiting
echo  * op4                                     Waiting
echo ====================================================
echo.

pause

但它不起作用。我已经检查了其他标签示例，他们通常最后有goto end或者其他东西，但我不打算关闭窗口。我应该修改什么？

Answer 1

goto非常简单，脚本从上到下阅读，一旦下来，他就不会回去，除非邀请他们。 goto命令是一种方法。

例如：

@echo off

echo goto is also used to skip a step, example go directly to step-2.
@timeout /t 2 /nobreak>NUL
goto step-2

:step-1
echo hello world
@timeout /t 2 /nobreak>NUL
goto step-3

:step-2
echo How are you? Oh sorry, I missed Salute.
@timeout /t 2 /nobreak>NUL
goto step-1

:step-3
echo Show me your code
@timeout /t 2 /nobreak>NUL
type %~f0 | more

exit /b 0

编辑：
使用call修改了同样的示例，以便在goto :eof

的帮助下向您显示脚本继续调用的位置

@echo off

echo goto is also used to skip a step, example go directly to step-2.
@timeout /t 2 /nobreak>NUL
goto step-2

:step-1
echo hello world
@timeout /t 2 /nobreak>NUL
::goto step-3
goto:eof

:step-2
echo How are you? Oh sorry, I missed Salute.
@timeout /t 2 /nobreak>NUL
::goto step-1
call :step-1

:step-3
echo Show me your code
@timeout /t 2 /nobreak>NUL
::type %~f0 | more

exit /b 0

Answer 2

您可以将批处理文件视为操作系统需要运行的CMD命令列表，以及运行它们的顺序。与其他脚本语言一样，批处理文件从上到下运行，除非方向由goto语句及其对应的行标签更改。

在您的情况下，goto zeroth转到:zeroth标签，然后继续沿着文件底部的快捷方式。因为它永远不会被告知在脚本中更高，所以它永远不会。

幸运的是，如果将goto替换为call，您还可以批量使用标签来模拟子例程。（它实际上不是一个子程序;它更像是将一块脚本作为自己独立的批处理脚本运行。）当你这样做时，你还必须使用goto :eof告诉脚本“子程序”结束的位置。

@echo off

REM   Process started
call :zeroth
timeout /t 1 /nobreak > NUL
REM   do some work. first operation is done
call :first
timeout /t 1 /nobreak > NUL
REM   do some work. second operation is done
call :second
REM ...
pause
REM We are at the end of the main chunk of code; everything below this is a subroutine
exit /b

:zeroth
cls
echo    Operation                               Status
echo ====================================================
echo  * op1                                     Waiting
echo  * op2                                     Waiting
echo  * op3                                     Waiting
echo  * op4                                     Waiting
echo ====================================================
echo.
goto :eof

:first
cls
echo    Operation                               Status
echo ====================================================
echo  * op1                                     Done
echo  * op2                                     Waiting
echo  * op3                                     Waiting
echo  * op4                                     Waiting
echo ====================================================
echo.
goto :eof

:second
cls
echo    Operation                               Status
echo ====================================================
echo  * op1                                     Done
echo  * op2                                     Done
echo  * op3                                     Waiting
echo  * op4                                     Waiting
echo ====================================================
echo.
goto :eof

Answer 3

您的原始代码存在问题，第4行您有goto，这很好

@echo off

REM   Process started
goto zeroth

所以代码进入＆＃34; zeroth＆＃34;正如它应该。但是在结束时：第0：你没有任何代码告诉批处理文件去其他任何地方，所以它继续下降。使用goto是跳转批处理文件的好方法。但是，如果你只是下线，IE转到0,1,2,3 ......你根本不需要goto，你可以简单地删除所有的gotos和代码运行得很好。

@ECHO OFF
REM   Process started
goto zeroth

:zeroth
cls
echo    Operation                               Status
echo ====================================================
echo  * op1                                     Waiting
echo  * op2                                     Waiting
echo  * op3                                     Waiting
echo  * op4                                     Waiting
echo ====================================================
echo.
TIMEOUT>NUL /T 1
::zeroth done, going to next
goto first
:first
cls
echo    Operation                               Status
echo ====================================================
echo  * op1                                     Done
echo  * op2                                     Waiting
echo  * op3                                     Waiting
echo  * op4                                     Waiting
echo ====================================================
echo.
TIMEOUT>NUL /T 1
:: first done, going to next
:second
cls
echo    Operation                               Status
echo ====================================================
echo  * op1                                     Done
echo  * op2                                     Done
echo  * op3                                     Waiting
echo  * op4                                     Waiting
echo ====================================================
echo.

pause
:: Processes all done
GOTO :EOF

Answer 4

使用SomethingDark的answer，我将代码更改为：

@ECHO OFF

call :1stOpRunning
timeout /t 1 /nobreak > NUL
REM   1st op code

call :2ndOpRunning
timeout /t 1 /nobreak > NUL
REM   2nd op code

call :3rdOpRunning
timeout /t 1 /nobreak > NUL
REM   3rd op code

call :4thOpRunning
timeout /t 1 /nobreak > NUL
REM   4th op code

call :allDone

exit /b

:1stOpRunning
cls
echo.
echo    Operation                               Status
echo ====================================================
echo  * op1                                     Waiting
echo  * op2                                     Waiting
echo  * op3                                     Waiting
echo  * op4                                     Waiting
echo ====================================================
timeout /t 1 /nobreak > NUL
cls
echo.
echo    Operation                               Status
echo ====================================================
echo  * op1                                     Processing
echo  * op2                                     Waiting
echo  * op3                                     Waiting
echo  * op4                                     Waiting
echo ====================================================
goto :eof

:2ndOpRunning
cls
echo.
echo    Operation                               Status
echo ====================================================
echo  * op1                                     Done
echo  * op2                                     Processing
echo  * op3                                     Waiting
echo  * op4                                     Waiting
echo ====================================================
goto :eof

:3rdOpRunning
cls
echo.
echo    Operation                               Status
echo ====================================================
echo  * op1                                     Done
echo  * op2                                     Done
echo  * op3                                     Processing
echo  * op4                                     Waiting
echo ====================================================
goto :eof

:4thOpRunning
cls
echo.
echo    Operation                               Status
echo ====================================================
echo  * op1                                     Done
echo  * op2                                     Done
echo  * op3                                     Done
echo  * op4                                     Processing
echo ====================================================
goto :eof

:allDone
cls
echo.
echo    Operation                               Status
echo ====================================================
echo  * op1                                     Done
echo  * op2                                     Done
echo  * op3                                     Done
echo  * op4                                     Done
echo ====================================================
echo.

echo    Press any key to continue . . .
timeout /t 5 > NUL
exit

如何批量使用标签

4 个答案: