//接口的包容.
using System;
public interface ITeacher
{
bool AgreeToTeach();
void Print(string b);
}
public class Professor:ITeacher
{
private int course;
public int Course
{
set{course=value;}
get{return course;}
}
public bool AgreeToTeach()
{
if(Course==1)
return true;
else
return false;
}
public void Print(string a)
{
Console.WriteLine(this.AgreeToTeach()+a);
}
}
public class Student:ITeacher
{
private int course;
public int Course
{
set{course=value;}
get{return course;}
}
public bool AgreeToTeach()
{
if(Course==1)
return true;
else
return false;
}
public void Print(string a)
{
Console.WriteLine(this.AgreeToTeach()+a);
}
}
public class Do
{
private ITeacher teach;
public ITeacher Teach
{
get{return teach;}
set{teach=value;}
}
static void Main()
{
Do c=new Do();
Professor p=new Professor();
c.Teach=p;
c.Teach.Print("professor");
Student m=new Student();
c.Teach=m;
c.Teach.Print("student");
}
}