无法为类型为[String]的索引下标为“ UInt32”的索引

Question

我一直在尝试创建代码以生成随机名称。这里是

import UIKit

 let arrayOfNames: [String] = ["Giovanni", "Simone", "Francesco", "Ahmet",       "Valerio", "Federico"]

 let arrayOfsNames: [String] = [" İl Genio", " Lo scemo", " Verga", " Fermi", " Medici", " L'assasino"]

 var casual1 = arc4random_uniform(7)
 var casual2 = arc4random_uniform(7)

 let name = "\(arrayOfNames[casual1]) + \(arrayOfsNames[casual2])"

  name

但是在“ let name”行上，这给了我标题上的错误。有谁知道为什么以及如何解决它？

Answer 1

您应该使用Int来按索引访问数组

取代这个

var casual1 = arc4random_uniform(7)
var casual2 = arc4random_uniform(7)

有了这个

var casual1 = Int(arc4random_uniform(7))
var casual2 = Int(arc4random_uniform(7))