python学习笔记之os

import  os
print(os.getcwd())
os.chdir(r'C:\Users\Administrator\PycharmProjects')
print(os.getcwd())

os.chdir('..')
print(os.getcwd())
os.makedirs('dirname1/dirname2')
os.removedirs('dirname1/dirname2')

os.mkdir('dirname1/dirname')

print(os.listdir(r'C:/Users/Administrator/PycharmProjects/s9'))

print(os.stat('1.复习.py'))

print(os.sep)  # python代码跨平台 ：linux windows


os.system("dir")
ret = os.popen("dir").read()
print(ret)

print(os.environ)

print(os.getcwd())
print(os.path.split(os.getcwd()))

print(os.path.join(r'C:\Users\Administrator','user','local'))
print(os.getcwd())
print(os.path.getsize(os.path.join(os.getcwd(),'1.复习.py')))