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否則條件總是執行...我有問題嗎？

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否則條件總是執行...我有問題嗎？

我正在努力讓這個東西發揮作用，但出於某種原因，即使我認為它是正確的，它似乎並沒有遵守 else 語句。結果，就像沒有其他，它只是執行所有程式碼行。目的是檢查某些東西正在運行。如果是，那麼它應該顯示一條訊息並使命令視窗保持開啟狀態，以便人們可以看到需要執行哪些操作來修復它，然後當按下某個鍵時，命令視窗將關閉。如果它沒有運行，它將為他們啟動它並關閉命令窗口，這樣人們就看不到它了。

以下是顯示正在發生的情況的輸出（刪除了空白行以節省空間）：

C:\Users\me2\Desktop>QPROCESS "Pulse.exe" 1>NUL No Process exists for pulse.exe
C:\Users\me2\Desktop>REM 0 means that it's running (ProcessFound) and 1 mean s it's not (ProcessNotFound)
C:\Users\me2\Desktop>REM cmd /k IF (1 EQU 0 goto ProcessFound) ELSE (goto Pr ocessNotFound)
C:\Users\me2\Desktop>REM cmd /k IF 1 NEQ 0 (
C:\Users\me2\Desktop>cmd /k IF ERRORLEVEL 1 (
C:\Users\me2\Desktop>echo In ProcessNotFound In ProcessNotFound
C:\Users\me2\Desktop>REM cd C:\Program Files (x86)\Common Files\Pulse Secure \JamUI\
C:\Users\me2\Desktop>REM start "" Pulse.exe -tray
C:\Users\me2\Desktop>echo In ProcessFound In ProcessFound
C:\Users\me27\Desktop>REM cls 0
Pulse Secure is running. It must be stopped by right clicking on the icon and clicking Exit.
Press any key to continue . . .

這是代碼：

QPROCESS "Pulse.exe">NUL
REM 0 means that it's running (ProcessFound) and 1 means it's not (ProcessNotFound)
REM cmd /k IF (%ERRORLEVEL% EQU 0 goto ProcessFound) ELSE (goto ProcessNotFound)
REM cmd /k IF %ERRORLEVEL% NEQ 0 (
cmd /k IF ERRORLEVEL 1 (
     :ProcessNotFound
     echo In ProcessNotFound
     REM cd C:\Program Files (x86)\Common Files\Pulse Secure\JamUI\
     REM start "" Pulse.exe -tray
) ELSE (
     :ProcessFound
     echo In ProcessFound
 REM    cls
     @echo off
     echo %ERRORLEVEL%
     ECHO.
     ECHO.
     ECHO Pulse Secure is running.
     ECHO It must be stopped by right clicking on the icon and clicking Exit.
     ECHO.
     ECHO.
     PAUSE
     )
REM IF %ERRORLEVEL% EQU 0 ECHO "Pulse Secure is running.  It must be stopped by right clicking on the icon and clicking Exit."

答案1

  • 您cmd /k將在同一視窗中產生 cmd.exe 的新實例。
  • 這個新的cmd.exe中的錯誤等級指的是cmd.exe本身的啟動，這顯然曾是成功，所以錯誤等級為0
  • 只需刪除所有不必要的cmd /k
  • 您也可以檢查%errorlevel%，這並不意味著if errorlevel x or greater您的語法的作用。

在不知道 QPROCESS 的情況下，您可以在失敗||或成功時使用條件執行&& ，請參閱https://ss64.com/nt/syntax-conditional.html

QPROCESS "Pulse.exe" >NUL 2>&1 || (
    echo In ProcessNotFound
    REM cd C:\Program Files (x86)\Common Files\Pulse Secure\JamUI\
    REM start "" Pulse.exe -tray
) && (
    echo In ProcessFound
    echo %ERRORLEVEL%
    ECHO.
    ECHO Pulse Secure is running.
    ECHO It must be stopped by right clicking on the icon and clicking Exit.
    ECHO.
    PAUSE
)

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