是否有一些像 INT_MAX
这样的预定义常量?
Is there some pre-defined constant like INT_MAX
?
Python 具有任意精度整数,因此没有真正的固定最大值.您只受到可用内存的限制.
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
和 long
.int
s 使用 C 类型,而 long
s 是任意精度.您可以使用 sys.maxint
找到最大 int
.但是int
s会自动提升为long
,所以你通常不用担心:
In Python 2, there are two types, int
and long
. int
s use a C type, while long
s are arbitrary precision. You can use sys.maxint
to find the maximum int
. But int
s 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
甚至在 Python 3 中都不存在,因为 int
和 long
被统一为一个任意精度的 int
输入.
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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