C#接口测试程序

    public interface Iprogramer
    {
        void WriteCode();
    }
    class clsVBProgramer : Iprogramer
    {
        public void WriteCode(){
            MessageBox.Show("VB程序员");
        }
    }
    class clsCProgramer : Iprogramer
    {
        public void WriteCode() { 
            MessageBox.Show("C程序员");
        }
    }
    class clsProject
    {
        public void WriteProgram(Iprogramer cProgramer) 
        {
            cProgramer.WriteCode();
        }
    }
//-----
        static void Main()
        {
            Application.EnableVisualStyles();
            Application.SetCompatibleTextRenderingDefault(false);
            clsCProgramer cProgramer = new clsCProgramer();
            clsVBProgramer vbProgramer = new clsVBProgramer();
            clsProject newProject = new clsProject();
            newProject.WriteProgram(cProgramer);
            newProject.WriteProgram(vbProgramer);
            //Application.Run(new Form1());
        }