設計模式學習筆記——原型模式

標籤：

1.特點：在初始化資訊不發生變化時考慮。

2.概念：通過複製一個已經存在的執行個體來建立一個新的執行個體。被複製的執行個體被稱為原型，這個原型是可定製的。

3.類圖：

4.程式實現：

/// <summary>    /// 實現了ICloneable介面的簡曆類    /// </summary>    public class Resume:ICloneable    {        public Resume()        {            mWorkExperience = new WorkExperience();        }        private string mName;        private string mSex;        private int mAge;        private WorkExperience mWorkExperience;        public string Name        {            get { return mName; }            set { mName = value; }        }        public string Sex        {            get { return mSex; }            set { mSex = value; }        }        public int Age        {            get { return mAge; }            set { mAge = value; }        }        /// <summary>        /// 關聯了一個參考型別        /// </summary>        public WorkExperience WorkExperience         {             get { return mWorkExperience; }         }        public void SetWorkExperience(DateTime startDate, DateTime endDate, string company, string position)        {            this.mWorkExperience.Company = company;            this.mWorkExperience.EndDate = endDate;            this.mWorkExperience.StartDate = startDate;            this.mWorkExperience.Position = position;        }        /// <summary>        /// 實現ICloneable介面的Clone方法        /// </summary>        /// <returns></returns>        public object Clone()        {            // .Net 為我們提供的淺複製對象的方法            return this.MemberwiseClone();        }    }    /// <summary>    /// 工作經曆類    /// </summary>    public class WorkExperience    {        public DateTime StartDate { get; set; }        public DateTime EndDate { get; set; }        public string Company { get; set; }        public string Position { get; set; }    }[TestMethod]        public void TestShallowCopy()        {            Resume myFirstResume = new Resume            {                Age = 29,                Name = "Kevin Wang",                Sex = "男",            };            myFirstResume.SetWorkExperience(new DateTime(2006, 7, 1), new DateTime(2007, 7, 1), "My First Company", "Software Engineer");            Resume mySecondResume = (Resume)myFirstResume.Clone();            mySecondResume.SetWorkExperience(new DateTime(2007, 8, 1), new DateTime(2008, 8, 1), "My Second Company", "Software Engineer");            Resume myThirdResume = (Resume)myFirstResume.Clone();            myThirdResume.SetWorkExperience(new DateTime(2008, 8, 1), new DateTime(2009, 8, 1), "My Third Company", "Senior Software Engineer");            Assert.AreEqual("My First Company", myFirstResume.WorkExperience.Company);            Assert.AreEqual("My Second Company", mySecondResume.WorkExperience.Company);            Assert.AreEqual("My Third Company", myThirdResume.WorkExperience.Company);               }

　　

設計模式學習筆記——原型模式