使用swift类追加到字典

class Person {
    var name: String
    var age: Int
    
    init(name: String, age: Int) {
        self.name = name
        self.age = age
    }
    
    func sayHello() {
        print("Hello, my name is \(name).")
    }
}

var personDict = [String: Person]()

let person = Person(name: "John", age: 25)
personDict["person1"] = person

if let person = personDict["person1"] {
    person.sayHello()
    print("Age: \(person.age)")
}