对python3中pathlib库的Path类的使用详解

from pathlib import 

p = Path('D:/python/1.py')
print(p)

#可以这么使用,相当于os.path.join()
p1 = Path('D:/python')
p2 = p1/'123'
print(p2)

D:\python\1.py
D:\python\123

path = Path.cwd()
print(path)

D:\python

p = Path('1.py')
print(p.stat())

os.stat_result(st_mode=33206, st_ino=8444249301448143, st_dev=2561774433, st_nlink=1, st_uid=0, st_gid=0, st_size=4, st_atime=1525926554, st_mtime=1525926554, st_ctime=1525926554)

>>> Path('.').exists()
True
>>> Path('1.py').exists()
True
>>> Path('2.py').exists()
False

path=Path.cwd()
pys = path.glob('*.py')#pys是经过yield产生的迭代器
for py in pys:
  print(py)

C:\python\1.py
C:\python\11.py
C:\python\1111.py
C:\python\11111.py

Path.is_dir()判断该路径是否是文件夹 
Path.is_file()判断该路径是否是文件

print('p1:')
p1 = Path('D:/python')
print(p1.is_dir())
print(p1.is_file())

print('p2:')
p2 = Path('D:/python/1.py')
print(p2.is_dir())
print(p2.is_file())

#当路径不存在时也会返回Fasle
print('wrong path:')
print(Path('D:/NoneExistsPath').is_dir())
print(Path('D:/NoneExistsPath').is_file())

p1:
True
False
p2:
False
True
wrong path:
False
False

p = Path.cwd()
for i in p.iterdir():
  print(i)

D:\python\1.py
D:\python\11.py
D:\python\1111.py
D:\python\11111.py
D:\python\dir

p_new = p/'new_dir'
p_new.mkdir()

p_news = p/'new_dirs/new_dir'
p_news.mkdir(parents=True)

p1 = Path('1.py')
p1.rename('new_name.py')

p2 = Path('11.py')
target = Path('new_dir/new_name.py')
p2.rename(target)