Swift - 类初始化方法

Posted 2020-10-28 蓝枫姐姐

1，init()：类的初始化方法（构造方法）

class Student: NSObject {
    //类属性
    var name:String = ""
    var age:Int = 0
    //类构造函数
    init(newName:String,newAge:Int){
        self.name = newName
        self.age = newAge
    }
    //成员函数
    func run() -> String {
        return "\(name) can run"
    }
    
}

var student = Student(newName:"baibai",newAge:31)
        student.name = "张三"
        print(student.name)
        print(student.age)
        print(student.run())