python

(1) 

 import pathlib

 path_hello=pathlib.Path('F:\hello.py')
 print(path_hello)

 ======================================================================

path_hello中是路径

 

(2)

 keras.utils.get_file(fname, origin, untar=False, md5_hash=None, file_hash=None, cache_subdir='datasets', hash_algorithm='auto', extract=False, archive_format='auto', cache_dir=None)

 ========================================================================

Downloads a file from a URL if it not already in the cache.

 (3)

 Path.iterdir()

 ========================================================================

When the path points to a directory, yield path objects of the directory contents:

 

(4)

Path.glob(pattern)

========================

Glob the given relative pattern in the directory represented by this path, yielding all matching files (of any kind):

(5)for i,v in enumerate(y_data):

 说明:同时从y_data中取出索引和值

posted @ 2019-11-11 17:23  博客_技术记录  阅读(252)  评论(0)    收藏  举报