Five66

这样子应该行吧

@if (0)/*==(0)/* echo off

set /a day=2*24*3600

for /f %%i in ('cscript //nologo //e:jscript "%~f0"') do set n=%%i
set n=%n:~0,-3%

if %day% leq %n% (
echo 大于或等于2天
) else (
echo 小于2天
)

pause&exit/b
rem */@end

var nil=null,td=new Date(),dt=new ActiveXObject('WbemScripting.SWbemDateTime');
for(var e=new Enumerator(GetObject("winmgmts:").InstancesOf ("Win32_OperatingSystem"));!e.atEnd();e.moveNext())
{
dt.value=e.item().LastBootUpTime;
WScript.Echo(td-dt.GetVarDate());
}
dt=nil;
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