C# (CSharp) IBar.Printの例

コード例 #1

        static void Main(string[] args)
        {
            //协变
            IFoo <string> fooStr = new Foo();
            IFoo <object> fooObj = fooStr;

            object memberName = fooObj.GetName();

            Console.WriteLine(memberName);
            Console.Read();


            //逆变
            IBar <object> barObj = new Bar();
            IBar <string> barStr = barObj;

            barStr.Print("Hello World");
            Console.Read();
        }