ios - Swift:将多个类型存储在一个数组中

Question

如何在单个数组中存储多个类型？

我正在做以下事情:

var vehicles = [string]()
let mustang = Car() // car is a class name
mustang.brandName = "Ford"
mustang.modelName = "Mustang" // string type
mustang.modelYear = 1968
mustang.isConvertibible = true
mustang.isHatchback = false
mustang.hasSunroof = false // bool type
mustang.numberOfDoors = 2 // int type
mustang.powerSource = "gas engine"

// Add it to array
vehicles.append(mustang.brandName)
vehicles.append(mustang.modelName)
vehicles.append(mustang.modelYear) // Error: int type not supported
vehicles.append(mustang.isConvertibible) // Error: bool type not supported
vehicles.append(mustang.brandName)
vehicles.append(mustang.brandName)

我该如何实现？我是 Swift/iOS 的新手。

Answer 1

除了创建 string array，你还可以像这样创建 car 的 array 并直接存储 car 对象

var cars = [Car]()
let mustang = Car() // car is a class name
mustang.brandName = "Ford"
mustang.modelName = "Mustang" // string type
mustang.modelYear = 1968
mustang.isConvertibible = true
mustang.isHatchback = false
mustang.hasSunroof = false // bool type
mustang.numberOfDoors = 2 // int type
mustang.powerSource = "gas engine"   
cars.append(mustang)  

或者如果你想存储不同类型的object那么你不能创建AnyObject的array，所以它会存储任何类型的该数组中的 instance 或 object。

var arr = [AnyObject]()
let car = Car()
let bike = Bike()
arr.append(car)
arr.append(bike)