如何在Swift中声明和初始化数组 [英] How to declare and initialise an array in Swift

问题描述

我在Swift中有一个要编写的类，该类具有对象数组的变量。

I have a class in Swift that I'm trying to write that has a variable of an array of objects. Is there a better way to write this?

var myvar: Array<MyClass> = Array<MyClass>()

在没有=号之后，编译器会抱怨我的AppDelegate没有初始化程序。上面的方法似乎有点冗长（尽管我猜它并不比C＃的简洁）。我只想知道是否有捷径。谢谢。

Without the bit after the = sign, the compiler complains about my AppDelegate having no initializers. The above way seems a bit lengthy (though it's no more terse than the c# equivalent, I guess). I'd just like to know if there's a shortcut. Thanks.

推荐答案

您可以使用空数组初始化变量：

You can initialize the variable with an empty array:

var myvar: Array<MyClass> = []

或使用自动类型推断：

var myvar = Array<MyClass>()

另外，您可以将 Array< MyClass> 编写为 [MyClass] 。

In addition, you can write Array<MyClass> as [MyClass].

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