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os.path.join()

函数功能：连接两个或更多的路径名组件

如果各组件名首字母不包含’/’，则函数会自动加上

如果有一个组件是一个绝对路径，则在它之前的所有组件均会被舍弃

如果最后一个组件为空，则生成的路径以一个’/’分隔符结尾

Demo1

import os Path1 = 'home'Path2 = 'develop'Path3 = 'code'Path10 = Path1 + Path2 + Path3Path20 = os.path.join(Path1,Path2,Path3)print 'Path10 = ',Path10print 'Path20 = ',Path20

输出如下:

Path10 =  homedevelopcodePath20 =  home/develop/code

Demo2

import os Path1 = '/home'Path2 = 'develop'Path3 = 'code'Path10 = Path1 + Path2 + Path3Path20 = os.path.join(Path1,Path2,Path3)print 'Path10 = ',Path10print 'Path20 = ',Path20

输出如下:

Path10 =  /homedevelopcodePath20 =  /home/develop/code

Demo3

import os Path1 = 'home'Path2 = '/develop'Path3 = 'code'Path10 = Path1 + Path2 + Path3Path20 = os.path.join(Path1,Path2,Path3)print 'Path10 = ',Path10print 'Path20 = ',Path20

输出如下:

Path10 =  home/developcodePath20 =  /develop/code

Demo4

import os Path1 = 'home'Path2 = 'develop'Path3 = '/code'Path10 = Path1 + Path2 + Path3Path20 = os.path.join(Path1,Path2,Path3)print 'Path10 = ',Path10print 'Path20 = ',Path20

输出如下:

Path10 =  homedevelop./codePath20 =  home/develop/./code

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