W3School TIY Editor

class Car(var brand: String, var model: String, var year: Int) { // 类方法（函数） fun drive() { println("Wrooom!") } // 带参数的类方法（函数） fun speed(maxSpeed: Int) { println("Max speed is: " + maxSpeed) } } val c1 = Car("Ford", "Mustang", 1969) // 打印属性值 println(c1.brand + " " + c1.model + " " + c1.year) // 调用方法 c1.drive() c1.speed(200)