public abstract void getPrice(); //抽象方法，不含主体
public virtual void getName() //虚方法，可覆盖
{
Console.WriteLine("this is a test:virtual getName()");
}
public virtual void getContent() //虚方法，可覆盖
{
Console.WriteLine("this is a test:virtual getContent()");
}
public void getDate() //一般方法，若在派生类中重写，须使用new关键字
{
Console.WriteLine("this is a test: void getDate()");
}
}
public class JavaBook:Book
{
public override void getPrice() //实现抽象方法，必须实现
{
Console.WriteLine("this is a test:JavaBook override abstract getPrice()");
}
public override void getName() //覆盖原方法，不是必须的
{
Console.WriteLine("this is a test:JavaBook override virtual getName()");
}
}
测试如下：
public class test
{
public test()
{
JavaBook jbook=new JavaBook();
jbook.getPrice(); //将调用JavaBook中getPrice()
jbook.getName(); //将调用JavaBook中getName()
jbook.getContent(); //将调用Book中getContent()
jbook.getDate(); //将调用Book中getDate()
}
public static void Main()
{test t=new test();
}
}
