数组 – [String]和Array之间的区别

发布时间：2020-12-14 04:59:02 所属栏目：百科来源：网络整理

导读：哪个是声明Array和Dictionary的更好方法,我使用了两个：阵列字符串 [串] 对我来说[String]在编码方面非常快,但实际上两者在编译器和性能方面有何不同,我们应该遵循哪一个？解决方法来自 Swift上的iOS开发者库… The type of a Swift array is written in

哪个是声明Array和Dictionary的更好方法,我使用了两个：

阵列<字符串>

[串]

对我来说[String]在编码方面非常快,但实际上两者在编译器和性能方面有何不同,我们应该遵循哪一个？

解决方法

来自 Swift上的iOS开发者库…

The type of a Swift array is written in full as Array< Element >,where
Element is the type of values the array is allowed to store. You can
also write the type of an array in shorthand form as [Element].
Although the two forms are functionally identical,the shorthand form
is preferred and is used throughout this guide when referring to the
type of an array.

https://developer.apple.com/library/ios/documentation/Swift/Conceptual/Swift_Programming_Language/CollectionTypes.html

（编辑：李大同）

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