统计windows文件夹下文件大小（python脚本和powershell脚本）

import os

totalSize = 0
fileNum = 0
dirNum = 0

def visitDir(path):
global totalSize
global fileNum
global dirNum
for lists in os.listdir(path):
sub_path = os.path.join(path, lists)
print(sub_path)
if os.path.isfile(sub_path):
fileNum = fileNum+1 # 统计文件数量
totalSize = totalSize+os.path.getsize(sub_path) # 文件总大小
elif os.path.isdir(sub_path):
dirNum = dirNum+1 # 统计文件夹数量
visitDir(sub_path) # 递归遍历子文件夹

def sizeConvert(size): # 单位换算
K, M, G = 1024, 1024**2, 1024**3
if size >= G:
return str(size/G)+'G Bytes'
elif size >= M:
return str(size/M)+'M Bytes'
elif size >= K:
return str(size/K)+'K Bytes'
else:
return str(size)+'Bytes'

def main(path):
if not os.path.isdir(path):
print('Error:"', path, '" is not a directory or does not exist.')
return
visitDir(path)

def output(path):
print('The total size of '+path+' is:'+sizeConvert(totalSize))
print('The total number of files in '+path+' is:',fileNum)
print('The total number of directories in '+path+' is:',dirNum)

if __name__ == '__main__':
path = r'C:zabbix'
main(path)
output(path)

--------------------powershell脚本-------------------------------------------------------

Write-Host DU 1.0 - 统计目录大小的脚本，作用和linux的du类似。`n
$args = "C:zabbix"
if (!$args)
{write-host "du 绝对目录名，如：`ndu.ps1 d:/mp3"}
elseif (!(Test-Path $args))
{write-host "错误：找不到目标目录名！"}
else
# 我在前人基础上整理，简化了不必要的功能，效果不错。个人感觉比sysinternals的du.exe好。
{
$b=Get-ChildItem $args -Recurse | Measure-Object -property length -sum
write-host "----【$args -- ",("{0:N2}" -f ($b.sum / 1MB)),"MB】----"
# 2010-8-15日出炉
$a=Get-ChildItem $args | Where-Object {$_.PsIsContainer -eq $true}
#foreach ($i in $a) 列出每个子目录大小
#{
#$subFolderItems = (Get-ChildItem $i.FullName -Recurse | Measure-Object -property length -sum)
#$i.FullName + " -- " + "{0:N2}" -f ($subFolderItems.sum / 1MB) + " MB"
#}
}