When 사용법 fun main() { helloWorld(); println(add(4, 5)) val name = "kyhslam" println("my name is ${name} ddf") println(maxBy2(4, 7)) } fun add(a: Int, b: Int): Int { return a + b } fun maxBy2(a: Int, b: Int) = if (a > b) a else b //when 사용법 fun checkNum(score: Int) { when (score) { 0 -> println("this is 0") 1 -> println("") 2, 3 -> print("this is 2 or 3") } var b = when (score) { 1 -> 1 2 -> 2 el..
배열을 쉽게 반복해서 꺼낸다.