[数值计算] 求助垃圾清理的批处理有些命令在运行时被"砍掉"了一半

@echo off
setlocal enabledelayedexpansion
set "t=%time%"
echo 清理Temp文件夹（Windows临时文件）:
echo 用户Temp:
cd/d %temp%
set total=0
for /f "delims=" %%a in ('dir/b/s/a-d') do set /a total=(!total!+%%~za)
set to1=total
del /f /s /q %temp%\*.*>nul
echo 完毕
echo 系统Temp:
cd/d %systemroot%\temp
set total=0
for /f "delims=" %%a in ('dir/b/s/a-d') do set /a total=(!total!+%%~za)
set to2=total
del /f /s /q %systemroot%\temp\*.*>nul
echo 完毕
echo 清理补丁文件:
cd/d %systemroot%\SoftwareDistribution\Download
set total=0
for /f "delims=" %%a in ('dir/b/s/a-d') do set /a total=(!total!+%%~za)
set to3=total
del /f /s /q %systemroot%\SoftwareDistribution\Download\*.*>nul
echo 完毕
echo 清理Windows日志:
cd/d %systemroot%\system32\LogFiles
set total=0
for /f "delims=" %%a in ('dir/b/s/a-d') do set /a total=(!total!+%%~za)
set to4=total
del /f /s /q %systemroot%\system32\LogFiles\*.*>nul
echo 完毕
echo 清理预读取文件:
cd/d %systemroot%\prefetch
set total=0
for /f "delims=" %%a in ('dir/b/s/a-d') do set /a total=(!total!+%%~za)
set to5=total
del /f /s /q %systemroot%\prefetch\*.*>nul
echo 完毕
echo 清理完成
set "t1=%time%"
if "%t1:~,2%" lss "%t:~,2%" set "add=+24"
set /a "times=(%t1:~,2%-%t:~,2%%add%)*360000+(1%t1:~3,2%%%100-1%t:~3,2%%%100)*6000+(1%t1:~6,2%%%100-1%t:~6,2%%%100)*100+(1%t1:~-2%%%100-1%t:~-2%%%100)" ,"ss=(times/100)%%60","mm=(times/6000)%%60","hh=times/360000","ms=times%%100"
set /a toe=to1+to2+to3+to4+to5
echo 共计删除了：%toe%字节 文件
echo 用时：%hh%时:%mm%分:%ss%秒.%ms%毫秒
pause
exit
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