import UIKit
class Friend{
var name: String
init(_ name : String){
self.name = name
}
func sayHi(){
print("안녕?! 난 \(self.name)라고 해")
}
}
class BestFriend : Friend{
override init(_ name : String){
super.init("베프" + name)
}
override func sayHi(){
super.sayHi()
}
}
let myFriend = Friend("쩡대리")
myFriend.sayHi()
let myBestFriend = BestFriend("영희")
myBestFriend.sayHi()