python中关于前后缀操作的详解

返回后缀名

import os

path = 'first_directory/second_directory/file.txt'print os.path.splitext(path)[1]print type(os.path.splitext(path)[1])

.txt
<type &#39;str&#39;>

前缀名的bool判断

path = 'first_directory/second_directory/file.txt'print path.startswith('fir')

True

后缀名的bool判断

path = 'first_directory/second_directory/file.txt'print path.endswith('.txt')

True

os.path.splitext、.startswith、.startswith 探究

import os

path = 'first_directory/second_directory/file.txt'print os.path.splitext(path)print os.path.splitext(path)[1]print type(os.path.splitext(path)[1])printprint path.startswith('fir')print path.startswith('aaa')print type(path.startswith('fir'))printprint path.endswith('.txt')print path.endswith('.aaa')print type(path.endswith('.txt'))

('first_directory/second_directory/file', '.txt')
.txt
<type &#39;str&#39;>

True
False


True
False

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