Swift 可以将类结构数据转换为字典吗

Swift 是一种功能强大的编程语言，它提供了许多方便的方法来处理数据。其中一个常见的需求就是将类或结构体的数据转换为字典。在本文中，我们将探讨如何使用 Swift 实现这个功能，并提供一些案例代码。

swift
class Person: Codable {
    var name: String
    var age: Int
    
    init(name: String, age: Int) {
        self.name = name
        self.age = age
    }
}

swift
let person = Person(name: "John", age: 25)
do {
    let jsonData = try JSONEncoder().encode(person)
    if let dictionary = try JSONSerialization.jsonObject(with: jsonData, options: []) as? [String: Any] {
        print(dictionary)
    }
} catch {
    print(error)
}

swift
struct Product: Codable {
    var name: String
    var price: Double
}
let product = Product(name: "iPhone", price: 999.99)
do {
    let jsonData = try JSONEncoder().encode(product)
    if let dictionary = try JSONSerialization.jsonObject(with: jsonData, options: []) as? [String: Any] {
        print(dictionary)
    }
} catch {
    print(error)
}

swift
class Address: Codable {
    var street: String
    var city: String
    
    init(street: String, city: String) {
        self.street = street
        self.city = city
    }
}
class Person: Codable {
    var name: String
    var age: Int
    var address: Address
    
    init(name: String, age: Int, address: Address) {
        self.name = name
        self.age = age
        self.address = address
    }
}
let address = Address(street: "123 Main St", city: "New York")
let person = Person(name: "John", age: 25, address: address)
do {
    let jsonData = try JSONEncoder().encode(person)
    if let dictionary = try JSONSerialization.jsonObject(with: jsonData, options: []) as? [String: Any] {
        print(dictionary)
    }
} catch {
    print(error)
}