• 2022-07-27
    c#的预定义的引用类型是
    A: class和object
    B: string和bool
    C: object和string
    D: struct和class
  • A

    内容

    • 0

      下列选项中,与class Person等价的是( )。知识点:继承 A: class Person(Object) B: class Person(object) C: class Person: Object D: class Person: object

    • 1

      下列属于引用类型有()。 A: Function B: Array C: String D: Object

    • 2

      在C#中,下列结构或者类定义正确的是(选一项) A: public struct Person{ string name; int age; public void ShowName(){ Console.WriteLine(name); }} B: public struct Person{ string name; int age; public Person(){ Conssole.WriteLine(name); }} C: public class Person{ string name; int age; public Person(){ Conssole.WriteLine(name); }} D: public class Person{ string name; int age; public Person(string name){ Conssole.WriteLine(name); }}

    • 3

      读代码: public class Test { public static void main (String args[]) { class Foo { public int i = 3; } Object o = (Object) new Foo(); Foo foo = (Foo)o; System.out.println(foo.i); } } 结果是:

    • 4

      下列不属于引用类型的有 A: class B: string C: double[] D: int