@echo off
for /f "tokens=3" %%c in ('dir "%UserProfile%\Desktop" ^| find "可用字节"') do for /f "delims=, tokens=1-6" %%A in ('echo %%c') do for /f "delims=" %%x in (test.txt) do if %%x lss %%A%%B%%C%%D%%E%%F (echo 小于可用空间) else echo 大或等于可用空间
pause >nul 2>nul
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@echo off
@rem 保存为ANSI格式
setlocal enabledelayedexpansion
for /f "tokens=3" %%a in ('dir "%UserProfile%\Desktop" ^| find "可用字节"') do (
	set A=%%a
	set A=!A:,=!
	echo;!A!
	for /f "tokens=*" %%b in ('type test.txt') do (
		 if !A! lss %%b (
			echo;小于可用空间
		 ) else (
			echo;大或等于可用空间
		 )
	)
)
endlocal
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@echo off
for /f "tokens=2 delims=录可" %%a in ('dir "%UserProfile%\Desktop" ^| find "可用字节"') do (
        set "spaceB=%%a"
        setlocal enabledelayedexpansion
        set "spaceB=!spaceB:,=!"
        set /p spaceTxt=<"test.txt"
        if !spaceB! geq !spaceTxt! (
                echo 实际:!spaceB!  文本:!spaceTxt!
                echo 实际 大于等于 文本
        ) else (
                echo 实际:!spaceB!  文本:!spaceTxt!
                echo 实际 小于 文本
        )
        endlocal
)
pause >nul
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@echo off
set /pd=<test.txt
for /f "tokens=3" %%c in ('dir /-c "%UserProfile%\Desktop" ^| find "可用字节"') do if %%c lss !d! (echo 小于可用空间) else echo 大或等于可用空间
pause
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@echo off
for /f "tokens=3" %%i in ('dir /a /-C "%UserProfile%\Desktop"') do set "FreeSpace=00000000000000000000%%i"
set /p Input=<Test.txt
set "Input=000000000000000000000%Input%"
if "%Input:~-20%" LEQ "%FreeSpace:~-20%" (
    echo;小于或等于可用空间
) else (
    echo;大于可用空间
)
pause
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