Swift中Int和Int32有什么区别? [英] What is the difference between Int and Int32 in Swift?
问题描述
在核心数据
中,您可以存储 Int16
, Int32
, Int64
但它与 Int
不同。它们存在的原因是什么,你如何使用它们?
In Core Data
you can store Int16
, Int32
, Int64
but it is different from Int
. What is the reason for their existence, how do you use them?
推荐答案
根据 Swift文档
Int
在大多数情况下,您无需选择要在代码中使用的特定大小的整数。 Swift提供了一个额外的整数类型Int,它与当前平台的本机字大小相同:
Int
In most cases, you don’t need to pick a specific size of integer to use in your code. Swift provides an additional integer type, Int, which has the same size as the current platform’s native word size:
在32位平台上,Int是与Int32相同的大小。
在64位平台上,Int与Int64的大小相同。
除非您需要使用特定大小的整数,否则请始终在代码中使用Int作为整数值。这有助于代码一致性和互操作性。即使在32位平台上,Int也可以存储-2,147,483,648和2,147,483,647之间的任何值,并且对于许多整数范围来说足够大。
Unless you need to work with a specific size of integer, always use Int for integer values in your code. This aids code consistency and interoperability. Even on 32-bit platforms, Int can store any value between -2,147,483,648 and 2,147,483,647, and is large enough for many integer ranges.
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