在 Swift 2.0 中使用 Stride [英] Using Stride in Swift 2.0

问题描述

我正在研究如何在 Swift 中使用 Stride 功能.

I'm trying to figure out how to use the Stride features in Swift.

从 Xcode 7.0 beta 6 开始似乎又发生了变化.

It seems to have changed again, since Xcode 7.0 beta 6.

以前我可以使用

let strideAmount = stride(from: 0, to: items.count, by: splitSize)
let sets = strideAmount.map({ clients[$0..<advance($0, splitSize, items.count)] })

现在，尽管有代码提示，我还是不知道如何使用此功能.

Now, despite the code hint I cannot figure out how to use this feature.

任何示例都会有所帮助，谢谢.

Any examples would be helpful thanks.

我看过示例，但我无法理解如何使用它.我从 Apple Docs 中得到的都是有限的.

I've looked at examples, but I cannot come to grips with how to use it. All I get from the Apple Docs are limited.

谢谢

推荐答案

有点变化，这里是新的语法:

It changed a bit, here is the new syntax:

0.stride(to: 10, by: 2)

和

Array(0.stride(to: 10, by: 2)) // is [0, 2, 4, 6, 8]

如果您查看此处，您可以看到哪些类型符合Strideable 协议.

if you take a look at here, you can see what types conform to the Strideable protocol.

正如@RichFox 指出的那样，在 Swift 3.0 中，语法变回了原始的全局函数形式，例如:

As @RichFox pointed out, in Swift 3.0 the syntax changed back to the original global function form like:

stride(from:0, to: 10, by: 2)

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