c#试题-以下代码输出什么
class Father
{
public virtual void ShowA(int i)
{
Console.Writeline(i);
}
public void ShowB(Father a)
{
a.ShowA(1);
ShowA(5);
}
}
class Son : Father
{
public override void ShowA(int i)
{
base.ShowA(i + 1);
}
}
static void Main(string[] args)
{
Father a = new Father();
Son b = new Son();
a.ShowB(a);
a.ShowB(b);
b.ShowB(a);
b.ShowB(b);
Console.ReadKey();
}
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