本文介绍了一个python字典中的5个最大值的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
我有一本这样的字典:
A = {'a':10,'b':843, c':39,.....}
我想获得这5个最大值用这个命令和存储一个新的命令。要得到我做的最大值:
max(A.iteritems(),key = operator.itemgetter(1))[ 0:]
也许这是一件容易的事情,但我坚持了很长时间。请帮助!!!
解决方案
你很近您可以使用,并采取前五个要素:
newA = dict(sorted(A.iteritems(),key = operator.itemgetter(1),reverse = True)[:5])
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另请参见:
I have a dictionary like this:
A = {'a':10, 'b':843, 'c': 39,.....}
I want to get the 5 maximum values of this dict and store a new dict with this. To get the maximum value I did:
max(A.iteritems(), key=operator.itemgetter(1))[0:]
Perhaps it is an easy task, but I am stuck on it for a long time. Please help!!!
解决方案You are close. You can sort the list using
sorted
and take the first five elements:newA = dict(sorted(A.iteritems(), key=operator.itemgetter(1), reverse=True)[:5])
See also: Python Sorting HowTo
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