如何批量创建、访问和修改灵活列表

我有一个批处理文件，用于检查是否存在先前编译的 exe 文件。如果不存在，它将重新编译，否则它将检查自创建 exe 文件以来是否有任何文件被修改过。如果发现修改过的文件，它将重新编译。然后它检查目录，跟踪文件内容的名称和时间戳。

我想知道如何做到这一点，这样我就不必手动列出：

file[0]=
file[1]=
file[2]=
etc.

现在我已经有了一个可以随时修改的列表，并且可以工作，但它的修改方式如下：

set SOURCES=!SOURCES! "%%F"

我的时间戳列表如下：

set LIST=!LIST! %FILE_TIMESTAMP_FORMAT%

我已经检查了很多来源，没有一个是动态的，或者对我来说根本不起作用。还有谁知道为什么格式无法编辑echo。

@echo off
setlocal enabledelayedexpansion

cd /d "C:\Users\ealos\OneDrive\Desktop\C++ Project"

echo Current directory: %CD%

set SOURCES=
set FILES_CHANGED=false
set LIST=

rem Check if cppgame.exe exists and get its timestamp
if exist cppgame.exe (
    for %%F in (cppgame.exe) do (
        set EXE_TIMESTAMP=%%~tF
    )
    echo cppgame.exe last modified: !EXE_TIMESTAMP!
    rem Convert cppgame.exe timestamp to comparable format
    set EXE_TIMESTAMP_FORMAT=!EXE_TIMESTAMP:~6,4!!EXE_TIMESTAMP:~0,2!!EXE_TIMESTAMP:~3,2!!EXE_TIMESTAMP:~11,2!!EXE_TIMESTAMP:~14,2!
    echo EXE Timestamp Format: !EXE_TIMESTAMP_FORMAT!
) else (
    echo cppgame.exe does not exist or was just created.
    set FILES_CHANGED=true
)

rem Loop through all .cpp files and check if any are newer than cppgame.exe
for %%F in (*.cpp) do (
    echo -----------
    rem Add the .cpp file to the SOURCES variable for compilation
    set SOURCES=!SOURCES! "%%F"
    
    rem Get the timestamp of the current .cpp file
    set FILE_TIMESTAMP=%%~tF
    rem Convert .cpp file timestamp to comparable format
    set FILE_TIMESTAMP_FORMAT=!FILE_TIMESTAMP:~6,4!!FILE_TIMESTAMP:~0,2!!FILE_TIMESTAMP:~3,2!!FILE_TIMESTAMP:~11,2!!FILE_TIMESTAMP:~14,2!
    
    echo Checking: %%F (Modified: !FILE_TIMESTAMP!)
    echo File Timestamp Format: (!FILE_TIMESTAMP_FORMAT!)
    
    rem Add the formatted timestamp to the LIST for comparison
    set LIST=!LIST! "%FILE_TIMESTAMP_FORMAT%"
    echo list: %LIST%
)

rem Now compare each timestamp in LIST with cppgame.exe's timestamp
echo %LIST%
for /f "tokens=1, delims==" %%a in (%LIST%) do (
    echo Comparing: %%a with !EXE_TIMESTAMP_FORMAT!
    if %%a GTR %EXE_TIMESTAMP_FORMAT% (
        set FILES_CHANGED=true
        echo File has changed, setting FILES_CHANGED=true
    )
    echo EXE Timestamp Format: !EXE_TIMESTAMP_FORMAT!
    echo File Timestamp Format: %%a
)

rem If no files have changed, just run the existing executable
if "!FILES_CHANGED!"=="false" (
    echo No files changed, running existing executable...
    cppgame.exe
    pause
    exit /b
)

rem If no .cpp files are found, exit
if "%SOURCES%"=="" (
    echo No .cpp files found in the directory!
    pause
    exit /b
)

rem Compile all .cpp files into a single executable (cppgame.exe)
echo Compiling...
g++ %SOURCES% -o cppgame.exe

rem Check if compilation was successful
if %ERRORLEVEL% NEQ 0 (
    echo Compilation failed!
    pause
    exit /b
)

rem Run the compiled executable
echo Running cppgame...
cppgame.exe

rem Pause to keep the console open after execution
pause