获取两次操作中间相隔了多少时间并做一些简单的转换

get_time_v1.bat

@echo off
:loop
set t_before=1%time:~3,2%%time:~6,2%%time:~9,2%
pause
set t_after=1%time:~3,2%%time:~6,2%%time:~9,2%
if %t_before% gtr %t_after% set /a t_after=%t_after%+216000
set /a t_time=%t_after%-%t_before%
set /a t_min=%t_time%/3600
set /a t_sec=(%t_time%-%t_min%*3600)/60
set /a t_mis=%t_time%-%t_min%*3600-%t_sec%*60
if %t_mis% lss 10 set t_mis=0%t_mis%
if %t_min% gtr 0 (
	if %t_sec% lss 10 (
	    set t_sec=0%t_sec%
	)
	echo %t_min%:%t_sec%.%t_mis%
) else (
    echo %t_sec%.%t_mis%
)
goto loop

get_time_v2.bat

@echo off
:loop
set t_before=1%time:~0,2%%time:~3,2%%time:~6,2%%time:~9,2%
pause
set t_after=1%time:~0,2%%time:~3,2%%time:~6,2%%time:~9,2%
set /a t_time=%t_after%-%t_before%
set /a t_sec=%t_time%/60
set /a t_mis=%t_time%-%t_sec%*60
if %t_mis% lss 10 set t_mis=0%t_mis%
echo %t_sec%.%t_mis%
goto loop