python 中的os.path.split()函数用法

基本概念

os.path.split()通过一对链表的头和尾来划分路径名。链表的tail是是最后的路径名元素。head则是它前面的元素。

举个例子：

path name = '/home/User/Desktop/file.txt'

在上面的这个例子中，路径名字file.txt称之为tail 路径‘/home/User/Desktop/’ 称之为head。tail部分永远不会包含斜杠符号。如果这个路径名字以斜杠结束，那么tail就是为空。
如果没有斜杠在路径中，那么head是为空的。下面是详细的参数：

pathheadtail

‘/home/user/Desktop/file.txt’	‘/home/user/Desktop/’	‘file.txt’
‘/home/user/Desktop/’	‘/home/user/Desktop/’	{empty}
‘file.txt’	{empty}	‘file.txt’

实例分析

1 实例一：

# Python program to explain os.path.split() method # importing os module import os # path path = '/home/User/Desktop/file.txt'# Split the path in # head and tail pair head_tail = os.path.split(path) # print head and tail # of the specified path print("Head of '% s:'" % path, head_tail[0]) print("Tail of '% s:'" % path, head_tail[1], "\n") # path path = '/home/User/Desktop/'# Split the path in # head and tail pair head_tail = os.path.split(path) # print head and tail # of the specified path print("Head of '% s:'" % path, head_tail[0]) print("Tail of '% s:'" % path, head_tail[1], "\n") # path path = 'file.txt'# Split the path in # head and tail pair head_tail = os.path.split(path) # print head and tail # of the specified path print("Head of '% s:'" % path, head_tail[0]) print("Tail of '% s:'" % path, head_tail[1])

2 结果：

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3 实例二

# Python program to explain os.path.split() method # importing os module import os # path path = '' # Split the path in # head and tail pair head_tail = os.path.split(path) # print head and tail # of the specified path print("Head of '% s':" % path, head_tail[0]) print("Tail of '% s':" % path, head_tail[1]) # os.path.split() function # will return empty # head and tail if # specified path is empty

4 测试结果：

Head of '': Tail of '':

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