제13장: 방법 제14장: 구조와 분석 제15장: 유형 계승(322)

소스 코드:

//    ：  《     swift》
//    ：        ：          ：   
//Create By ChenZhen

import Foundation

//class Account {
//    
//    var amount: Double = 10_000.00      //    
//    var owner: String = "Tony"          //   
//    //    
//    func interesWithRate(rate: Double) -> Double {
//        return rate * amount
//    }
//}
//
//var myAccount = Account()
////      
//print(myAccount.interesWithRate(rate: 0.088))


//   
//class Employee {
//    var no: Int = 0
//    var name: String = ""
//    var job: String?
//    var salary: Double = 0
//    var dept: Department?
//}
//
//class Department {
//    var no: Int = 0
//    var name: String = ""
//    var employees: [Employee] = [Employee]()
//    
//    func insertWithObject(anObject: AnyObject, atIndex index: Int) ->() {
//        let emp = anObject as! Employee
//        employees.insert(emp, at:index)
//    }
//}
//var dept = Department()
//
//var emp1 = Employee()
//dept.insertWithObject(anObject: emp1, atIndex: 0)
//
//var emp2 = Employee()
//dept.insertWithObject(anObject: emp2, atIndex: 0)
//
//var emp3 = Employee()
//dept.insertWithObject(anObject: emp3, atIndex: 0)
//
//print(dept.employees.count)


//          
//class Employee {
//    var no: Int = 0
//    var name: String = ""
//    var job: String?
//    var salary: Double = 0
//    var dept: Department?
//}

//struct Department {
//    var no: Int = 0
//    var name: String = ""
//    var employees: [Employee] = [Employee]()
//    //                   。      ‘mutating’
//    mutating func insertWithObject(anObject: AnyObject, atIndex index: Int) ->() {
//        let emp = anObject as! Employee
//        employees.insert(emp, at:index)
//    }
//}
//struct Department {
//    var no: Int = 0
//    var name: String = ""
//    var employees = NSMutableArray()  //[Employee] = [Employee]()
//    //                   。           。
//    func insertWithObject(anObject: AnyObject, atIndex index: Int) ->() {
//        let emp = anObject as! Employee
//        employees.insert(emp, at:index)
//    }
//}
//var dept = Department()
//
//var emp1 = Employee()
//dept.insertWithObject(anObject: emp1, atIndex: 0)
//
//var emp2 = Employee()
//dept.insertWithObject(anObject: emp2, atIndex: 0)
//
//var emp3 = Employee()
//dept.insertWithObject(anObject: emp3, atIndex: 0)
//
//print(dept.employees.count)


//           
//class RectangleA {
//    var width: Double
//    var height: Double
//    
//    init(W width: Double, H height: Double) {
//        self.width = width
//        self.height = height
//    }
//}
//
//var recta = RectangleA(W: 320, H: 480)
//print("   A:\(recta.width) * \(recta.height)")


//                  
//class RectangleA {
//    var width: Double
//    var height: Double
//    
//    init(width: Double, height: Double) {
//        self.width = width
//        self.height = height
//    }
//}
//
//var recta = RectangleA(width: 320, height: 480)
//print("   A:\(recta.width) * \(recta.height)")


//             ,                           
//struct RectangleA {
//    var width: Double
//    var height: Double
//    
//}
//
//var recta = RectangleA(width: 320, height: 480)
//print("   A:\(recta.width) * \(recta.height)")


//      
//class RectangleA {
//    var width: Double
//    var height: Double
//    
//    init(width: Double, height: Double) {
//        self.width = width
//        self.height = height
//    }
//    
//    init(W width: Double, H height: Double) {
//        self.width = width
//        self.height = height
//    }
//    
//    init(length: Double) {
//        self.width = length
//        self.height = length
//    }
//    
//    init() {
//        self.width = 640.0
//        self.height = 940.0
//    }
//}
//
//var rectc1 = RectangleA(width: 320, height: 480)
//print("   A:\(rectc1.width) * \(rectc1.height)")
//
//var rectc2 = RectangleA(W: 330, H: 480)
//print("   A:\(rectc2.width) * \(rectc2.height)")
//
//var rectc3 = RectangleA(length:500.0)
//print("   A:\(rectc3.width) * \(rectc3.height)")
//
//var rectc4 = RectangleA()
//print("   A:\(rectc4.width) * \(rectc4.height)")


//            
//struct RectangleA {
//    var width: Double
//    var height: Double
//    
//    init(width: Double, height: Double) {
//        self.width = width
//        self.height = height
//    }
//    
//    init(W width: Double, H height: Double) {
//        self.width = width
//        self.height = height
//    }
//    
//    init(length: Double) {
//        self.init(W: length, H: length)
//    }
//    
//    init() {
//        self.init(width: 640.0, height: 940.0)
//    }
//}
//
//var rectc1 = RectangleA(width: 320, height: 480)
//print("   A:\(rectc1.width) * \(rectc1.height)")
//
//var rectc2 = RectangleA(W: 330, H: 480)
//print("   A:\(rectc2.width) * \(rectc2.height)")
//
//var rectc3 = RectangleA(length:500.0)
//print("   A:\(rectc3.width) * \(rectc3.height)")
//
//var rectc4 = RectangleA()
//print("   A:\(rectc4.width) * \(rectc4.height)")


//          
//class RectangleA {
//    var width: Double
//    var height: Double
//    
//    init(width: Double, height: Double) {
//        self.width = width
//        self.height = height
//    }
//    
//    init(W width: Double, H height: Double) {
//        self.width = width
//        self.height = height
//    }
//    
//    convenience init(length: Double) {
//        self.init(W: length, H: length)
//    }
//    
//    convenience init() {
//        self.init(width: 640.0, height: 940.0)
//    }
//}
//
//var rectc1 = RectangleA(width: 320, height: 480)
//print("   A:\(rectc1.width) * \(rectc1.height)")
//
//var rectc2 = RectangleA(W: 330, H: 480)
//print("   A:\(rectc2.width) * \(rectc2.height)")
//
//var rectc3 = RectangleA(length:500.0)
//print("   A:\(rectc3.width) * \(rectc3.height)")
//
//var rectc4 = RectangleA()
//print("   A:\(rectc4.width) * \(rectc4.height)")


//    ，     
//class RectangleA {
//    var width: Double
//    var height: Double
//    
//    init(width: Double, height: Double) {
//        self.width = width
//        self.height = height
//    }
//    
//    init(W width: Double, H height: Double) {
//        self.width = width
//        self.height = height
//    }
//    
//    deinit {
//        print("      ...")
//        self.width = 0.0
//        self.height = 0.0
//    }
//}
//
//var rectc1: RectangleA? = RectangleA(width: 320, height: 480)
//print("   A:\(rectc1!.width) * \(rectc1!.height)")
//rectc1 = nil
//
//var rectc2: RectangleA? = RectangleA(W: 330, H: 480)
//print("   A:\(rectc2!.width) * \(rectc2!.height)")
//rectc2 = nil


//        
class Person {
    var name: String
    var age: Int
    
    func description() -> String {
        return "\(name)    :\(age)"
    }
    
    convenience init() {
        self.init(name: "tony")
        self.age = 18
    }
    convenience init(name: String) {
        self.init(name: name, age: 18)
    }
    init(name: String, age: Int) {
        self.name = name
        self.age = age
    }
}

class Student: Person {
    var school: String
    init (name: String, age: Int, school: String) {
        self.school = school
        super.init(name: name, age: age)
        self.name = "  "
        self.age = 21
    }
    convenience override init(name: String, age: Int) {
        self.init(name: name, age: age, school: "        ")
    }
    func toString() {
        print("Student:\(school) \(name) \(age)")
    }
}

let student = Student()
print("  :\(student.toString())")