如何初始化斯威夫特一个数组？ [英] How to initialize an array in Swift?

问题描述

我在斯威夫特一个大阵。我想初始化到相同的值的所有成员（即，它可以是零或一些其它值）。什么是最好的办法？

I have a large array in Swift. I want to initialize all members to the same value (i.e. it could be zero or some other value). What would be the best approach?

推荐答案

其实，这是斯威夫特用很简单。如在<一个提到href=\"https://developer.apple.com/library/ios/documentation/Swift/Conceptual/Swift_Programming_Language/CollectionTypes.html#//apple_ref/doc/uid/TP40014097-CH8-ID112\">Apple's DOC ，你可以像这样一样重复值初始化数组：

Actually, it's quite simple with Swift. As mentioned in the Apple's doc, you can initialize an array with the same repeated value like this:

var threeDoubles = [Double](count: 3, repeatedValue: 0.0)

这将使：

[0.0, 0.0, 0.0]

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