如何将dict值转换为浮点数 [英] How to convert dict value to a float

问题描述

如何将dict值转换为浮点数

How to convert dict value to a float

dict1= {'CNN': '0.000002'}

s=dict1.values()
print (s)
print (type(s))

我得到的是:

dict_values(['0.000002'])
<class 'dict_values'> # type, but need it to be float

但是我想要的是如下的浮点值:

but what I want is the float value as below:

 0.000002
 <class 'float'> # needed type

推荐答案

这里有两件事:首先，s实际上是对字典值的迭代器，而不是值本身的迭代器.其次，一旦您提取了值，例如通过for循环.好消息是您可以做到这一点:

Two things here: firstly s is, in effect, an iterator over the dictionary values, not the values themselves. Secondly, once you have extracted the value, e.g. by a for loop.The good news is you can do this is one line:

print(float([x for x in s][0]))

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