C# -- 接口 (关键字:interface)

C#: 接口(关键字:interface)

1.代码(入门举例)

     class Program
     {
         static void Main(string[] args)
         {
             Console.WriteLine("-------------------------------------");
             IIntroduce iSE = new SoftwareEngineer();
             iSE.SayHi();
             iSE.DescribeMyself();
             iSE.SayGoodbye();

             Console.WriteLine("-------------------------------------");
             IIntroduce iTc = new Teacher();
             iTc.SayHi();
             iTc.DescribeMyself();
             iTc.SayGoodbye();

             Console.ReadKey();
         }
     }

     interface IIntroduce
     {
         void SayHi();
         void DescribeMyself();
         void SayGoodbye();

     }

    class SoftwareEngineer : IIntroduce
     {
         public void DescribeMyself()
         {
             Console.WriteLine("I'm a software engineer !");
         }

         public void SayGoodbye()
         {
             Console.WriteLine("Goodbye !");
         }

         public void SayHi()
         {
             Console.WriteLine("Hi !");
         }

     }

    class Teacher : IIntroduce
     {
         public void DescribeMyself()
         {
             Console.WriteLine("I'm a Teacher !");
         }
         public void SayGoodbye()
         {
             Console.WriteLine("Goodbye !");
         }
         public void SayHi()
         {
             Console.WriteLine("Hi !");
         }
     }

2. 运行结果：