71일차(1)/Android App(15) : Kotlin Abstract Class, Companion, Map Stpe05_AbstractClass package com.example.kotlin_test //추상 클래스 abstract class Weapon{ fun move(){ println("이동합니다.") } abstract fun attack() } class MyWeapon : Weapon(){ override fun attack() { println("무언가를 공격해요") } } fun main(){ val w1=MyWeapon() w1.move() w1.attack() println("-------------------") /* with( 참조값 ){ } 참조값을 가지고(참조값과 함께..
