polynomialasorderedlist.cs

来自「Data Structures and Algorithms with Obj」· CS 代码 · 共 58 行

namespace Opus6
{
    using System;

    [Version("$Id: PolynomialAsOrderedList.cs,v 1.6 2001/10/28 19:50:09 brpreiss Exp $"), Copyright("Copyright (c) 2001 by Bruno R. Preiss, P.Eng.")]
    public class PolynomialAsOrderedList : Polynomial
    {
        public PolynomialAsOrderedList()
        {
            this.list = new OrderedListAsLinkedList();
        }

        public override void Add(Term term)
        {
            this.list.Insert(term);
        }

        public override void Differentiate()
        {
            Visitor visitor1 = new DifferentiatingVisitor();
            this.list.Accept(visitor1);
            ComparableObject obj1 = this.list.Find(new Term(0, 0));
            if (obj1 != null)
            {
                this.list.Withdraw(obj1);
            }
        }

        public override Polynomial Plus(Polynomial poly)
        {
            throw new MethodNotImplementedException();
        }

        public override string ToString()
        {
            return this.list.ToString();
        }


        private OrderedList list;


        internal class DifferentiatingVisitor : AbstractVisitor
        {
            public override void Visit(object obj)
            {
                Term term1 = obj as Term;
                if (term1 != null)
                {
                    term1.Differentiate();
                }
            }

        }
    }
}