尝试快速声明自定义对象的数组

问题描述

这是我的代码

    var planetNames = ["mercury", "venus", "earth", "mars", "jupiter", "saturn", "uranus", "neptune", "pluto"] //names of the planets

    for currentRing in 0..<orbitMarkers.count
    {
        var planetNames[currentRing] = planet(size: 1.2)

    }

这是我的课程

class planet
{
   var size: CGFloat
   init(size: CGFloat)
   {
     self.size = size
   }
}

我试图弄清楚如何制作一个由8个新的行星"对象组成的数组

I am trying to figure out how I can make an array of 8 new "planet" objects

推荐答案

您可以这样做:

class planet
{
    var name: String
    var size: CGFloat
    init(name: String, size: CGFloat)
    {
        self.size = size
        self.name = name
    }
}

var planets: [planet] = []
var mercury = planet(name: "Mercury", size: 20)
planets.append(mercury)

我为您的Planet类添加了一个名称变量，然后数组初始化为var planets:[planet]，作为示例，我附加了一个行星供您查看其工作原理.

I added a name variable for your planet class, and then the array initialization is var planets: [planet] and as an example I have appended one planet for you to see how its done.

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