zoukankan      html  css  js  c++  java
  • os.path.join()函数的用法

    转:https://blog.csdn.net/hduxiejun/article/details/80289476 

     

    os.path.join()函数:连接两个或更多的路径名组件

                             1.如果各组件名首字母不包含’/’,则函数会自动加上

             2.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

             3.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 + Path3
    Path20 = os.path.join(Path1,Path2,Path3)
    print ('Path10 = ',Path10)
    print ('Path20 = ',Path20)

    输出

    Path10 = homedevelopcode
    Path20 = homedevelopcode

    --------------------------------------------------------------

    Demo2

    import os

    Path1 = '/home'
    Path2 = 'develop'
    Path3 = 'code'

    Path10 = Path1 + Path2 + Path3
    Path20 = os.path.join(Path1,Path2,Path3)
    print ('Path10 = ',Path10)
    print ('Path20 = ',Path20) 
    输出

    Path10 = /homedevelopcode
    Path20 = /homedevelopcode

    --------------------------------------------------------------

    Demo3

    import os

    Path1 = 'home'
    Path2 = '/develop'
    Path3 = 'code'

    Path10 = Path1 + Path2 + Path3
    Path20 = os.path.join(Path1,Path2,Path3)
    print ('Path10 = ',Path10)
    print ('Path20 = ',Path20) 

    输出

    Path10 = home/developcode
    Path20 = /developcode

    --------------------------------------------------------------

    Demo4

    import os

    Path1 = 'home'
    Path2 = 'develop'
    Path3 = '/code'

    Path10 = Path1 + Path2 + Path3
    Path20 = os.path.join(Path1,Path2,Path3)
    print ('Path10 = ',Path10)
    print ('Path20 = ',Path20 )

    输出

    Path10 = homedevelop/code
    Path20 = /code

  • 相关阅读:
    java.lang.ClassNotFoundException: com.sun.tools.javac.Main (Liferay运行ant build.xml执行错误)
    JS正则验证手机号码或者电话号码(转)
    ResultSet用法
    IntelliJ IDEA 快捷键和设置
    Ext.MessageBox消息框
    vim + cscope + ctags + taglist配置
    ExtJs 确认密码验证的实现
    一道关于排列组合的算法题
    把Boost更新到了1.35
    发布Flv合并器的.net版
  • 原文地址:https://www.cnblogs.com/tangjunjun/p/11816042.html
Copyright © 2011-2022 走看看