xxpinqz

@echo off&setlocal enabledelayedexpansion
(for /f "tokens=7delims=;" %%a in (a.txt) do (
    echo %%a
    for /f "tokens=1-3delims=:" %%i in ("%%a") do (
        set/a h+=1%%i%%100,m+=1%%j%%100,s+=1%%k%%100
    )
)
set/a m+=s/60,s=s%%60+100,h+=m/60,m=m%%60+100
if !h! lss 10 set h=0!h!
echo 合计: !h!:!m:~-2!:!s:~-2!
)>b.txt
start b.txt
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xxpinqz

回复 3# 非常感谢

@echo off
%1(for /f "delims=" %%a in ('%~0 :^|sort /r')do echo,%%a)>b.txt
for /f "tokens=7delims=;" %%a in (a.txt) do (
    echo %%a
    for /f "tokens=1-3delims=:" %%i in ("%%a") do (
        set/a h+=1%%i%%100,m+=1%%j%%100,s+=1%%k%%100
    )
)
set/a m+=s/60,s=s%%60+100,h+=m/60,m=m%%60+100
if %h% lss 10 set h=0%h%
echo  合计: %h%:%m:~-2%:%s:~-2%
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