深複製——Deep_Copy

簡歷的深複製實現

workExperience類:實現了ICloeable接口==實現了Clone方法——創建一個新對象，然後將當前對象的非靜態字段複製到該新對象。如果字段是值類型的則對該字段執行逐位複製。如果字段是引用類型的，則複製引用但不復制引用的對象。

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace Deep_Copy
{
    class WorkExperience : ICloneable
    {
        private string workDate;
        public string WorkDate
        {
            get { return workDate; }
            set { this.workDate = value; }
        }
        private string company;
        public string Company
        {
            get { return company; }
            set { this.company = value; }
        }

        public object Clone()
        {
            return (Object)this.MemberwiseClone();
        }
    }
}

Resume簡歷

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace Deep_Copy
{
    class Resume : ICloneable
    {
        private string name;
        private string sex;
        private string age;
        private WorkExperience workExperience;
        public Resume(string name)
        {
            this.name = name;
            workExperience = new WorkExperience();
        }
        private Resume(WorkExperience workExperience)
        {
            this.workExperience = (WorkExperience)workExperience.Clone();
        }
        //設置個人信息
        public void SetPersonalInfo(string sex, string age)
        {
            this.sex = sex;
            this.age = age; 
        }
        //設置工作經歷
        public void SetWorkExperience(string workDate,string company)
        {
            this.workExperience.WorkDate = workDate;
            this.workExperience.Company = company;
        }
        //顯示
        public void DisPlay()
        {
            Console.WriteLine("{0} {1} {2}", name, sex,age);
            Console.WriteLine("工作經歷: {0} {1}",workExperience.WorkDate,workExperience.Company);
        }
        public Object Clone()
        {
            Resume obj = new Resume(this.workExperience);
            obj.name = this.name;
            obj.sex = this.sex;
            obj.age = this.age;
            return obj;
        }
        
    }
}

深複製：把引用對象的變量指向複製過的新對象，而不是原有的被引用的對象。當Resume類的對象new出來時候共有的Resume方法new了一個WorkExperience對象存儲到Resume對象中的workExperience。

Resume對象中的Clone方法 調用私有構造器Resume()將workExperience傳入到私有構造器中，在私有構造器中調用workExperienc中的Clone方法。 返回的WorkExperience對象存儲在workExperiecne中。這個時候相當於把引用對象的變量指向了複製過來的新對象obj 而不是原有的被引用的對象。