@echo off    REM 查询字符串是否包含某字符串     REM @echo off & SET 变量1=C:\你妹D\大调     REM echo %变量1%|find /i "C:\你妹D">nul 2>nul&&echo true||echo false     REM pause>nul         set pathDst=C:\Users\Administrator\Desktop\Dst    set pathSrc=E:\Src        REM =================需要排除的目录或者文件类型=================    set excludeDir=obj,    set excludeFile=pdb cs csproj user    Rem =================清空目标文件夹所有子文件夹和文件=================    if exist "%pathDst%" (    echo 目标文件夹已存在！    cd /d "%pathDst%"    for /d %%i in (*) do (    rd /s /q "%%i"    del /a /f /q *.*    )    echo 目标文件夹清空完成！    )     REM 复制所有文件夹以及文件xcopy /y /e /h %pathSrc%  %pathDst% >nulecho 复制所有 for %%c in (%excludeFile%) do (del  "%pathDst%\*.%%c" )    for /d /r %pathDst% %%i in (*) do (           setlocal enabledelayedexpansion    set "aa=%%i"     REM set aa=!aa:%pathDst%=!     if  exist "!aa!" (      set "A1=!aa!"    set "A2=%pathDst%\obj"     set "EXISTS_FLAG=false"     echo "!A1!"|find /i "!A2!" >nul 2>nul&& set "EXISTS_FLAG=true"||set "EXISTS_FLAG=false"     if  !EXISTS_FLAG!==true (    echo !A1!    rd /s /q "!A1!"     ) else ( for %%c in (%excludeFile%) do (del  "!A1!\*.%%c" )    )     )    endlocal     )     echo 完成    pause>nul    rem    echo %pathSrc%     Rem =================源文件夹及子文件夹=================    REM for /r  %pathSrc%  %%i in (*.txt *.jpg *.png) do (    REM echo E:%%~pi    REM set var=!var:*%cd%=!     REM )            REM Rem =================字符串替换，源字符串不变=================    REM set aa=伟大的中国！我为你自豪！    REM echo 替换前：%aa%    REM echo 替换后：%aa:中国=中华人民共和国%    REM echo aa = %aa%    REM set "aa=%aa:中国=中华人民共和国%"    REM echo aa = %aa%    REM Rem =================遍历所有的子目录(方法1)=================    REM for /f "delims=" %%a in (‘dir /ad/s/b %pathSrc%‘) do (     REM rem 获取文件夹完整路径(最后不带\)    REM echo %%~a    REM rem 获取文件夹完整路径(最后不带\)    REM echo %%a    REM rem 回去文件夹名称    REM echo %%~na    REM )    Rem =================遍历所有的子目录(方法2)并复制所有目录=================    REM set EXISTS_FLAG=false    REM for /d /r %pathSrc% %%i in (*) do (      rem echo %%i        REM setlocal enabledelayedexpansion    REM set "aa=%%i"    rem echo !aa!    REM set aa=!aa:%pathSrc%=!    rem echo !aa!     rem echo %pathDst%!aa!    REM if not exist "%pathDst%!aa!" (     REM set "A1=%pathSrc%!aa!"    REM set "A2=%pathSrc%\obj"     REM set "EXISTS_FLAG=false"    REM =================搜索某字符串是否包含另一个字符串=================    REM echo "!A1!"|find /i "!A2!" >nul 2>nul&& set "EXISTS_FLAG=true"||set "EXISTS_FLAG=false"   REM echo !EXISTS_FLAG!        REM if  !EXISTS_FLAG!==true (    REM echo "%pathSrc%!aa!"    REM echo "%pathSrc%\obj"    REM ) else (    REM md "%pathDst%!aa!"                 REM for %%c in (%excludeFile%) do (REM xcopy /s/e/c "!A1!\*.%%c" "%pathDst%!aa!"REM )    REM )     REM )    REM endlocal     REM ) pause