μ€λμ ν΄λμ€μ ꡬ쑰체 κ·Έλ¦¬κ³ μ΄κ±°ν ! π class π class Circle { // classλͺ μ λλ¬Έμλ‘ μμ var radius = 3.123 // class μμ± let pi = 3.1415926535 func area() -> Double { // λ©μλ return (radius * radius * pi) } } let circle = Circle() // μΈμ€ν΄μ€(κ°μ²΄, μ€λΈμ νΈ) μμ± let circle = Circle.init() // μμ κ°μ circle.area() νλ‘νΌν°κ° μ΄κΈ°νλΌμμ§ μμΌλ©΄ μλ¬ class μμ class Apple { // super class: κ³΅ν΅ var appleColor = "red" } class AppleAndBanana : Apple { //..