通过示例学习python中os模块的使用

import os

print(os.getcwd())  # C:\Users\ThinkStation\Desktop

path = 'C:/Users/ThinkStation/Desktop/test'
print(os.listdir(path))  # ['test_data.xlsx', '文件', '海报', '苹果']

print(os.path.exists(path))#True

path_new='C:/Users/ThinkStation/Desktop/test_new'
if os.path.exists(path_new):
    os.mkdir(path_new)

for i in os.walk(path):
    print(i)

'''
('C:/Users/ThinkStation/Desktop/test', ['文件', '海报', '苹果'], ['test_data.xlsx'])
('C:/Users/ThinkStation/Desktop/test\\文件', [], ['main.py', 'manage.py', '草稿本.docx'])
('C:/Users/ThinkStation/Desktop/test\\海报', [], ['18.jpg', '19.jpg', '20.jpg', '21.jpg'])
('C:/Users/ThinkStation/Desktop/test\\苹果', [], ['0.jpg', '1.jpg', '2.jpg', '3.jpg', '4.jpg'])
'''

path_r = './test'
print(os.path.abspath(path_r))#C:\Users\ThinkStation\Desktop\test

path2='C:/Users/ThinkStation/Desktop/airplane-expend'
print( os.path.getsize(path2))#393216

path = 'C:/Users/ThinkStation/Desktop/test'
path_r = './test'
print(os.path.isabs(path_r))#False
print(os.path.isabs(path))#True

print(os.path.isfile(path))#False
print(os.path.isdir(path))#True

path3 = 'C:/Users/ThinkStation/Desktop'
path4='test'
filepath = path3 + '/' + path4
print(filepath)#C:/Users/ThinkStation/Desktop/test
print(os.path.join(path3,path4))#C:/Users/ThinkStation/Desktop/test

print(os.path.join(path3,path4))#C:/Users/ThinkStation/Desktop\test

print(os.path.split(path))#('C:/Users/ThinkStation/Desktop', 'test')