中国DOS联盟

@echo off
set /p drive=你想知道那个分区的容量？
if "%drive%" equ "" (
  goto :eof
) else (
  set drive=%drive:~0,1%
)
set drive=%drive::=%
set drive=%drive:\=%
set total=
set free=
for /f "tokens=2 delims==" %%a in ('wmic LogicalDisk where "DeviceID='%drive%:'" get Size /value') do set total=%%a
echo 总空间：%total%
for /f "tokens=3" %%a in ('dir /a %drive%:') do set free=%%a
set free=%free:,=%
echo 剩余空间：%free%
>"%tmp%\cacl.vbs" echo wscript.echo %total%-%free%
for /f %%a in ('cscript /nologo "%tmp%\cacl.vbs"') do echo 已用空间：%%a

@echo off&color b
set /p disk=输入你要查询的盘符
for /f %%a in ('wmic logicaldisk where "caption='%disk%:'" get FreeSpace /value 2^>nul') do set %%a
    if %FreeSpace% LSS 1024 set/a FreeSpace=(FreeSpace*1000)/1024&echo.&echo.&echo.&echo.                     %disk% 盘可用空间为 !Free! KB&pause>nul&goto :eof
    set mn=MB
    call :lp 1048576
    set mn=GB
    set/a modr=0
    set FreeSpace=%t%
    set t=0
    call :lp 1024
    goto :eof
:lp
    set Free=%FreeSpace:~0,1%
    set/a mod=modr*10+Free
    set/a r=mod/%1
    set t=%t%%r%
    if "%t%"=="0" set t=
    set/a modr=mod%%%1
    set FreeSpace=%FreeSpace:~1%
    if defined FreeSpace goto lp
    set/a w=0
    if %t% gtr 1024 goto :eof
    set t=%t%.
    set n=2
:loop
    set /a modr*=10,r=modr/%1,w+=1
    if %w% geq %n% set/a modr=modr%%%1*10/%1 && goto lpok
    set t=%t%%r%
    set/a modr=modr%%%1
goto loop
:lpok
cls
for /f "delims=0 tokens=*" %%i in ("%t%%r% %mn%") do set t=%%i
echo.&echo.&echo.                      %disk% 盘可用空间为: %t%&echo.&pause&exit