显示特定文件夹中的所有文件名

Question

就像有一个文件夹说XYZ，其中包含不同格式的文件，比如说.txt文件，excel文件，.py文件等。我想使用Python编程在输出中显示所有文件名

Answer 1

import glob
glob.glob('XYZ/*')

See the documentation for more

Answer 2

Here is an example that might also help show some of the handy basics of python -- dicts {} , lists [] , little string techniques ( split ), a module like os , etc.:

bvm@bvm:~/example$ ls
deal.xls    five.xls  france.py  guido.py    make.py      thing.mp3  work2.doc
example.py  four.xls  fun.mp3    letter.doc  thing2.xlsx  what.docx  work45.doc
bvm@bvm:~/example$ python
>>> import os
>>> files = {}
>>> for item in os.listdir('.'):
...     try:
...             files[item.split('.')[1]].append(item)
...     except KeyError:
...             files[item.split('.')[1]] = [item]
... 
>>> files
{'xlsx': ['thing2.xlsx'], 'docx': ['what.docx'], 'doc': ['letter.doc', 
'work45.doc', 'work2.doc'], 'py': ['example.py', 'guido.py', 'make.py', 
'france.py'], 'mp3': ['thing.mp3', 'fun.mp3'], 'xls': ['five.xls',
'deal.xls', 'four.xls']}
>>> files['doc']
['letter.doc', 'work45.doc', 'work2.doc']
>>> files['py']
['example.py', 'guido.py', 'make.py', 'france.py']

For your update question, you might try something like:

>>> for item in enumerate(os.listdir('.')):
...     print item
... 
(0, 'thing.mp3')
(1, 'fun.mp3')
(2, 'example.py')
(3, 'letter.doc')
(4, 'five.xls')
(5, 'guido.py')
(6, 'what.docx')
(7, 'work45.doc')
(8, 'deal.xls')
(9, 'four.xls')
(10, 'make.py')
(11, 'thing2.xlsx')
(12, 'france.py')
(13, 'work2.doc')
>>>

Answer 3

import os

XYZ = '.'

for item in enumerate(sorted(os.listdir(XYZ))):
    print item