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python使用any判断一个对象是否为空的方法

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Release： 2016-06-10 15:18:56
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本文实例讲述了python使用any判断一个对象是否为空的方法。分享给大家供大家参考。

具体实现代码如下：

复制代码 代码如下:
>>> eth = {"eth0″:"192.168.1.1″}
>>> any(eth)
True
>>> eth = {}
>>> any(eth)
False

判断list是否为空

传统的方式：

复制代码 代码如下:
if len(mylist):
    # Do something with my list
else:
    # The list is empty
由于一个空 list 本身等同于 False，所以可以直接：
复制代码 代码如下:
if mylist:
    # Do something with my list
else:
    # The list is empty

希望本文所述对大家的Python程序设计有所帮助。

Related labels：
any python judgment object Is it empty
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