python os模块 练习题

os

os.path

os

dir
-l

#!/usr/bin/env python3
# -*- coding: utf-8 -*-
import os
import time
import re

dirpath=r'D:\Exercises\python'
listFile(dirpath)
findFile(dirpath,'.py')

def listFile(path):
print('权限\t文件数\t用户名\t群组名\t大小\t月份\t日期\t时间\t文件名')
for x in os.listdir(path):
dir=os.path.join(path,x)
st=os.stat(dir)
print(oct(st.st_mode)[-3:],end='\t')
print(numOfFiles(dir),end='\t')
print(st.st_uid,end='\t')
print(st.st_gid,end='\t')
print(st.st_size,end='\t')
lc_time=time.localtime(st.st_mtime)
print(time.strftime('%b',lc_time),end='\t')
print(lc_time.tm_mday,end='\t')
print(time.strftime('%H:%M',lc_time),end='\t')
print(x)

#计算文件夹数，最小为1
def numOfFiles(path,num=1):
try:
for x in os.listdir(path):
dir=os.path.join(path,x)
if os.path.isdir(dir):
num+=1
num=numOfFiles(dir,num)
except BaseException as e:
pass
finally:
return num

2. 编写一个程序，能在当前目录以及当前目录的所有子目录下查找文件名包含指定字符串的文件，并打印出相对路径。

#!/usr/bin/env python3
# -*- coding: utf-8 -*-

import os

keyword = input('Input keyword: ')
up = '.'
result = []

def check(up, keyword):
all = os.listdir(up)
for x in all:
try:
abs_x = os.path.join(up, x)
if os.path.isdir(abs_x):
up = os.path.join(up, x)
check(up, keyword)
up = os.path.split(up)[0]
if os.path.isfile(abs_x):
if keyword in x:
result.append(abs_x)
except:
continue

check(up, keyword)
print('\n==========Find %d files==========\n' % len(result))
num = 0
for r in result:
num += 1
print('%d  %s' % (num, r))
print('\n===============END===============\n')
os.system("pause")