If/else命令語法批量編輯

Question

如何添加ELSE部分到此代碼，以便如果它找不到javac.exe它會給出相應的找不到JDK消息？

FOR /R "C:\Program Files" %%a IN (.) DO (
     IF EXIST "%%~a\javac.exe" ECHO You Have The Java Dev Kit Ignore 

    Option 4) 

Answer 1

您可以將某些括號添加到您，如果statment，並添加ELSE之後

IF EXIST "%%~a\javac.exe" (
     ECHO You Have The Java Dev Kit Ignore 
    ) ELSE (
     ECHO Cannot Find JDK 
    ) 

Answer 2

IF EXIST "%%~a\javac.exe" (ECHO You Have The Java Dev Kit Ignore) ELSE (do something else)