@echo off
%2 for /f "tokens=2delims==" %%a in ('wmic logicaldisk where "name='C:'" get size/value^|find "="') do set sz=%%a
%2 mshta vbscript:createobject("wscript.shell").run("%~s0 "^&round(%sz%/1024/1024,2)^&" Rem")(window.close)&goto :eof
echo C盘容量为 %1 MB
pause
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@echo off&setlocal enabledelayedexpansion
set Md=1048576&set "name=c:"
for /l %%i in (1 1 9) do set /aNum%%i=MD*%%i&set "Num%%i=0!Num%%i!"
for /f "skip=1" %%a in ('wmic logicaldisk where "name='%name%'" get Size') do (
    set "Size=0%%a00"
        set S=!Size!&set Line=0
        for %%i in (16 8 4 2 1) do if "!s:~%%i!" neq "" set/a Line+=%%i&set "S=!S:~%%i!"
        set "str=!Size:~1,7!"
        if !str! lss !MD! (set i=8)else set i=7&set "str=!Size:~,7!"
        for /l %%i in (1 1 9) do set s=!s:%%i=0!
        for /l %%i in (!i! 1 !Line!) do (
            set "str=!s!!str!!Size:~%%i,1!"
            set "str=!str:~-8!"
            if !str! geq !Num1! (
               set N=1
               for /l %%j in (2 1 9) do if "!str!" geq "!Num%%j!" set "N=%%j"
               set "G_Size=!G_Size!!N!"
               for %%j in (!N!) do set /a "str=3!str!-1!Num%%j!"
               set str=!str:~1!
            ) else set "G_Size=!G_Size!0"
        )
        echo %name% !G_Size:~,-2!.!G_Size:~-2! [M]
)
pause
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