swift - 如何访问实现两个协议(protocol)的一个 Struct 属性？

Question

我刚刚学习 Swift 4，在尝试访问必须实现 2 个协议(protocol)的结构体的属性时遇到了一些麻烦

这是我的结构

struct FigureA {
    static func load() -> Model {
        return Model.make(
            name: "FigureName", 
            status: "Painted", 
            image: UIImage(named: "FigureA"), 
            description: "Good figure")
    }
}

这里是协议(protocol) 1

protocol ListModel: class {
    var name: String { get }
    var status: String { get }
    var image: UIImage? { get }
}

这里是协议(protocol)2

protocol DetailModel: ListModel {
    var categoryName: String { get }
    var modelDescription: String? { get }
}

我想访问该结构的描述，但我根本不知道如何实现。

有人能给我一点启发吗？

Answer 1

这是您的良好开端:

protocol BaseProtocol {
    var id: Int { get set }
}

protocol PersonProtocol: BaseProtocol {
    var firstName: String { get set }
    var lastName: String { get set }
    var name: String { get }
}

struct Person: PersonProtocol {
    var id: Int
    var firstName: String
    var lastName: String
    var name: String { return firstName + " " + lastName }
}

//≠≠≠≠≠≠≠≠≠≠≠≠≠≠≠≠≠≠≠≠≠≠≠≠≠≠≠≠≠≠≠≠≠≠≠≠≠≠≠≠≠

class ViewController: UIViewController {

    override func viewDidLoad() {
        super.viewDidLoad()

        //Create Struct Instance & Print properties.
        let person = Person(id: 1001, firstName: "Manish", lastName: "Rathi")
        print(person.id)
        print(person.firstName)
        print(person.lastName)
        print(person.name)
    }
}

#HappyCoding😊