【简答题】写出下面程序的运行结果: 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) { va...
【单选题】分析下列C#语句,注意类MyClass 没有访问修饰符: namespace ClassLibrary1 { class MyClass { public class subclass { int i; } } } 若必须为类MyClass 添加访问修饰符,并使MyClass 的可访问域保持不变,则应选择_________。