C# 设计模式之【备忘录模式】

using System;using System.Collections.Generic;using System.Text;namespace 备忘录模式{ class Program { static void Main(string[] args) { //大战Boss前 GameRole lixiaoyao = new GameRole(); lixiaoyao.GetInitState(); lixiaoyao.StateDisplay(); //保存进度 RoleStateCaretaker stateAdmin = new RoleStateCaretaker(); stateAdmin.Memento = lixiaoyao.SaveState(); //大战Boss时，损耗严重 lixiaoyao.Fight(); lixiaoyao.StateDisplay(); //恢复之前状态 lixiaoyao.RecoveryState(stateAdmin.Memento); lixiaoyao.StateDisplay(); Console.Read(); } } class GameRole { //生命力 private int vit; public int Vitality { get { return vit; } set { vit = value; } } //攻击力 private int atk; public int Attack { get { return atk; } set { atk = value; } } //防御力 private int def; public int Defense { get { return def; } set { def = value; } } //状态显示 public void StateDisplay() { Console.WriteLine("角色当前状态："); Console.WriteLine("体力：{0}", this.vit); Console.WriteLine("攻击力：{0}", this.atk); Console.WriteLine("防御力：{0}", this.def); Console.WriteLine(""); } //保存角色状态 public RoleStateMemento SaveState() { return (new RoleStateMemento(vit, atk, def)); } //恢复角色状态 public void RecoveryState(RoleStateMemento memento) { this.vit = memento.Vitality; this.atk = memento.Attack; this.def = memento.Defense; } //获得初始状态 public void GetInitState() { this.vit = 100; this.atk = 100; this.def = 100; } //战斗 public void Fight() { this.vit = 0; this.atk = 0; this.def = 0; } } //角色状态存储箱 class RoleStateMemento { private int vit; private int atk; private int def; public RoleStateMemento(int vit, int atk, int def) { this.vit = vit; this.atk = atk; this.def = def; } //生命力 public int Vitality { get { return vit; } set { vit = value; } } //攻击力 public int Attack { get { return atk; } set { atk = value; } } //防御力 public int Defense { get { return def; } set { def = value; } } } //角色状态管理者 class RoleStateCaretaker { private RoleStateMemento memento; public RoleStateMemento Memento { get { return memento; } set { memento = value; } } }}