rem 记得改系统的日期格式为yyyy/mm/dd,日期改为HH:mm
rem 每天12点前，创建目录为“前一天12”，每天12点之后，创建目录为“当天00”
rem 你可以把计算机的小时数分别设为05和15测试一下。
rem 逻辑应该没问题，现在问题是if判断不起作用，总执行到else中
set tt=%time:~0,2%
if %tt% gtr 12 set datedir=%date:~0,4%%date:~5,2%%date:~8,2%00 else (
pause
set DaysAgo=1
>"%temp%\MyDate.vbs" echo LastDate=date()-%DaysAgo%
>>"%temp%\MyDate.vbs" echo FmtDate=right(year(LastDate),4) ^& right("0" ^& month(LastDate),2) ^& right("0" ^& day(LastDate),2)
>>"%temp%\MyDate.vbs" echo wscript.echo FmtDate
for /f %%a in ('cscript /nologo "%temp%\MyDate.vbs"') do (
    set DstDate=%%a
)

set datedir=%date:~0,4%%date:~5,2%%DstDate:~6,2%12
)

mkdir %datedir%
cd %datedir%
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powershell -command "& {(get-date).AddHours(-15).tostring(\"yyyyMMddHH\") | %{md $_}}"
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@echo off
set 时=12
set 日=-1
set h=%time:~,2%
if %h% geq 12 if %h% leq 23 set 日=0&set 时=00
for /f %%a in ('mshta VBScript:Execute("NewDate=date()+(%日%):FmtDate=year(NewDate)&right(""0""&month(NewDate),2)&right(""0""&day(NewDate),2):CreateObject(""Scripting.FileSystemObject"").GetStandardStream(1).Write FmtDate"^)(close^)') do set 日期=%%a
md %日期%%时%
pause
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