public static void VisitorPatternMain()
{
ConcreteElementA elementA = new ConcreteElementA();
ConcreteElementB elementB = new ConcreteElementB();
ObjectStruture struture = new ObjectStruture();
struture.Add(elementA);
struture.Add(elementB);
ConcreteVisitor1 v1 = new ConcreteVisitor1();
struture.Aceppt(v1);
}
public override void VisitorConcreteElementA(ConcreteElementA element)
{
Console.WriteLine($"{element.GetType().Name}被{this.GetType().Name}访问");
}
public abstract void VisitorConcreteElementA(ConcreteElementA element);
