Question

我有一个包含50多个问题的iOS应用。每个问题都有：

一个问题
正确答案
三个不正确的答案
图片名称

最初我尝试使用结构（如下所示）并为每个问题创建一个常量，当用户得到该问题时我可以调用/加载：

struct QuestionInfo {
    var question: String
    var correctAnswer: String
    var wrongAnswer_1: String?
    var wrongAnswer_2: String?
    var wrongAnswer_3: String?
    var imageName: String
}

然而，我被告知这是一个愚蠢的想法，我应该使用数组。我理解数组是针对这种类型的东西，但我如何保持它有条理？

好像我有六个阵列：

let question = ["Is Mars a planet?", "Is Spain in Africa?", "+50 more"]
let correctAnswer = ["Yes", "No", "+50 more"]
//+Four more arrays

每个阵列的长度不超过50个，每个问题将同时存在于六个不同的列表中，这使我很难保持井井有条。我应该为每个问题创建一个数组/结构，然后创建一个数组/结构数组吗？

let questionPackage = QuestionInfo(
        question: "Is Mars a planet?",
        correctAnswer: "Yes",
        wrongAnswer_1: "No",
        wrongAnswer_2: "No one knows.",
        wrongAnswer_3: "It's a candy bar."
        imageName: "MarsPhoto",
    )
let questionPackage2  = QuestionInfo(
        question: "Is Spain in Africa?",
        correctAnswer: "No",
        wrongAnswer_1: "Yes",
        wrongAnswer_2: "It's up for debate",
        wrongAnswer_3: "Duh, it's in South America."
        imageName: "SpanishFlag",
    )

//Array of structs
let array = [questionPackage, questionPackage2, etc]

我正在尝试根据最有效的运行方式和正常的设计模式进行选择。

Answer 1

实际上我没有看到像你这样的结构有任何问题。也许只是略有改进

struct Question {
    let question: String
    let correctAnswer: String
    let wrongAnswers: (String, String, String)
    let imageName: String
}

用法

let question = Question(
    question: "First captain of the Enterprise?",
    correctAnswer: "Pike",
    wrongAnswers: ("Kirk", "Picard", "Archer"),
    imageName: "Enterprise"
)

print(question.question)
print(question.correctAnswer)
print(question.wrongAnswers.0)
print(question.wrongAnswers.1)
print(question.wrongAnswers.2)

Answer 2

使用如下所示的结构数组

STRUCT

struct Question {
var q: String
var a: String
var wa: (String, String, String)
}

阵列

let array = [Question(q: "q", a: "a", wa: ("wa", "wa", "wa")), Question(q: "q", a: "a", wa: ("wa", "wa", "wa"))]

用法

print(array[0].q)
print(array[0].a)
print(array[0].wa)

我该如何组织这些数据？

2 个答案:

用法