@echo off&setlocal enabledelayedexpansion
if "%~1" == "" (
	set d=%date:~,4%年
	(for /f "tokens=1*" %%i in ('%~s0 $ ^|sort/r') do (
		echo %%j %%i
		for /f "tokens=1-3 delims=:" %%a in ("%%i") do (
			set /a h+=1%%a-100,m+=1%%b-100,s+=1%%c-100
		)
	)
	set /a m+=s/60,h+=m/60,s%%=60,m%%=60
	for %%a in (h m s) do if !%%a! lss 10 set %%a=0!%%a!
	echo,合计：!h!:!m!:!s!)>b.txt
	exit
) else for /f "skip=1tokens=1-3" %%a in (a.txt) do (
	   if "%%c" lss "0" (
		for /f "delims=-.:/\ tokens=1-2" %%i in ("%%a") do (
			set "str=%d%%%i月%%j日 %%c"
		)
	   ) else for /f "tokens=1-3 delims=:" %%i in ("%%i") do (
                       if "%%k" == "" (set h=00:) else set "h="
                       echo !h!%%c !str!
                  )
       )
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@echo off >b.txt
@echo off&setlocal enabledelayedexpansion
for /f "skip=1 delims=" %%a in (a.txt) do (
  set /a n+=1
  if not defined str (
    for /f "tokens=1,2,4 delims=- " %%b in ("%%a") do set "str=%date:~,4%年%%b月%%c日 %%d"
    ) else (
    for /f "tokens=3,4 delims=: " %%b in ("%%a") do (
      set "_%%b%%c_!n!=!str! %%b:%%c"&set "str="
      set /a m+=1%%b %% 100,s+=1%%c %% 100
      if !s! gtr 60 set /a s-=60,m+=1
      if !m! gtr 60 set /a m-=60,h+=1
    )
  )
)
for /f "tokens=2 delims==" %%a in ('set _^|sort /r') do echo,%%a
for %%a in (h m s) do set "%%a=00!%%a!"&set "%%a=!%%a:~-2!"
echo,合计：%h%:%m%:%s% >>b.txt
pause>nul
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