Python整数范围 [英] Python integer ranges

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本文介绍了Python整数范围的处理方法,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

在Python中,有没有办法获得可以使用的最大整数?是否有一些预定义的常量,如INT_MAX?

In Python, is there a way to get the largest integer one can use? Is there some pre-defined constant like INT_MAX?

推荐答案

Python具有任意精度整数,因此没有真正的固定最大值。你只受可用内存的限制。

Python has arbitrary precision integers so there is no true fixed maximum. You're only limited by available memory.

在Python 2中,有两种类型, int int s使用C类型,而 long s是任意精度。您可以使用 sys.maxint 来查找最大值 int 。但 int 会自动提升为 long ,因此您通常无需担心:

In Python 2, there are two types, int and long. ints use a C type, while longs are arbitrary precision. You can use sys.maxint to find the maximum int. But ints are automatically promoted to long, so you usually don't need to worry about it:

sys.maxint + 1

工作正常并返回 long

sys.maxint 甚至不存在于Python 3中,因为 int long 被统一为一个任意的precision int type。

sys.maxint does not even exist in Python 3, since int and long were unified into a single arbitrary precision int type.

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