python遍历文件夹下所有文件大小_python遍历文件夹读取文件大小 | 学步园

闲来无事，写了个小程序删除内存卡中大于50m的文件

# filename itertaorfilefolder

import os

import os.path

filePath = raw_input('Enter filepath : ')

#遍历文件夹

#三个参数：分别返回1.父目录 2.所有文件夹名字(不含路径) 3.所有文件名字

for parent ,dirnames , filenames in os.walk(filePath):

#输出文件夹信息

for dirname in dirnames:

print 'parent is :'+parent

print 'dirname is '+ dirname

#输出文件信息

for filename in filenames :

print 'parent is :'+parent

print 'filename is :' + filename

#输出文件路径信息

currentPath = os.path.join(parent,filename)

print 'the fulll name of the file is :'+ currentPath

filesize = os.path.getsize(currentPath)/1024/1024

print 'the file size is : %.3f MB' %(filesize)

#删除大于50m的文件

if filesize > 50:

delete = raw_input(' are you sure to delete ?')

if delete == 'yes':

os.remove(currentPath)