Functions

import UIKit

func myFunction(name: String) -> String{
    return "안녕하세요.! \\(name) 입나다"
}

myFunction(name: "Oli")

func myFunctioSecond(with name: String) -> String {
    return "안녕하세요.! \\(name) 입나다"
}

myFunctioSecond(with: "Ollie")

func myFunctioSecon(_ name: String) -> String {
    return "안녕하세요.! \\(name) 입나다"
}
myFunctioSecon("Ollie")