求批处理统计文件夹内的所有文件的数量和总大小

@echo off
echo.
set /p dirPath=please input folder path:
set /a s=1024*1024*1024
for /f "tokens=3 delims= " %%i in (‘dir /s /a /-c "%dirPath%" ^|findstr 个文件‘) do (set z=%%i)
echo.
echo 文件夹：%dirPath%
set d=bit
if %z% gtr 1024 set /a "z>>=10"&set d=KB
if %z% gtr 1024 set /a "z>>=10"&set d=MB
if %z% gtr 1024 set /a "z>>=10"&set d=GB

echo 的总大小是：%z% %d%&echo.
if %z% LSS %s% echo 该文件夹内容小于1G
pause>nul

@echo off
setlocal enabledelayedexpansion
(for /d %%a in (C:\KuGou\*) do (
    set/a n=z=0
    pushd "%%a"
    for %%b in (*.*.) do (
        set/a n+=1,z+=%%~zb
    )
    set/a "z>>=20"
    popd
    echo;%%a [!n!个!z!M]
))>统计结果.txt
pause

@echo off
setlocal enabledelayedexpansion
echo.
set /p dirPath=please input folder path:
echo %dirPath%
echo.
for /d %%a in (%dirPath%\*) do (
    set/a zz=0
    for /f "tokens=3 delims= " %%t in (‘dir /s /a /-c "%%a" ^|findstr 个文件‘) do (
    set zz=%%t
    )    
set d=bit
if !zz! GEQ 1024 set /a "z1=!zz!>>10"&set d=KB
if !z1! GEQ 1024 set /a "z2=!z1!>>10"&set d=KB
if !z2! GEQ 1024 set /a "z3=!z2!>>10"&set d=KB
echo 文件夹：%%a ,大小是：!z3!GB = !z2!MB = !z1!!d!
)
for /f "tokens=1-4 delims= " %%i in (‘dir /a /-c %dirPath% ^|findstr 个文件‘) do (
    set/a ss=%%k
    set/a ss>>=10,d=bit
    
    if !ss! GEQ 1024 set /a "s1=!ss!>>10"&set d=KB
    if !s1! GEQ 1024 set /a "s2=!s1!>>10"&set d=KB
    if !s2! GEQ 1024 set /a "s3=!s2!>>10"&set d=KB
    echo 在"%dirPath%"根目录下有 %%i %%j ,总共大小为:!s3!GB = !s2!MB = !s1!!d!
    )

pause