下面的,那些语句是错误的?在答案中写出错误的语句和错误的原因。 open class Base() { var a = 1 private var b = 2 protected open val c = 3 internal val d = 4 protected fun e() { } } class Derived: Base() { override val c = 9 } fun main(args: Array
) { val base = Base() println("base.a = ${base.a}") println("base.d = ${base.d}") println("base.b = ${base.b}") println("base.c = ${base.c}") println("base.e = ${base.e}") val derived = Derived() println("derived.c = ${derived.c }") }