有的场合下，我们需要浅复制便能解决问题，因为我们复制出来的实例，仍然引用原来的初始对象。但是有的时候，这是不够的，因为我们复制出来的实例，还要对引用类型做出局部值的修改调整，并且保证不能影响初始对象！
这便要求深度复制了！
需求是这样的：
首先看一下浅复制为什么不能满足我们的要求：我们要复制简历，并且复制出的版本只与模板简历的求职意向中的公司名称不一致。
我们的第一版代码是这样的：
简历模型1.0版本
public class ResumeInfo1:ICloneable
{
public ResumeInfo1(string name, string telephone, EducationInfo educationInfo,WantedJob1 job)
{
this._name = name;
this._telephone = telephone;
this._educationInfo = educationInfo;
this._wantedJob = job;
}
private string _name;
public string name
{
get { return this._name; }
}
private string _telephone;
public string telephone
{
get { return _telephone; }
}
private EducationInfo _educationInfo;
public EducationInfo educationInfo
{
get { return _educationInfo; }
}
private WantedJob1 _wantedJob;
public WantedJob1 WantedJob
{
get { return _wantedJob; }
}
public object Clone()
{
return this.MemberwiseClone();
}
}里面嵌套的子类教育背景对象EducationInfo
public class EducationInfo
{
public string schoolName { get; set; }
public DateTime enrollTime { get; set; }
public DateTime leaveTime { get; set; }
}还有嵌套的对象WantedJob1:
public class WantedJob1
{
public string companyName { get; set; }
public double eanrings { get; set; }
}我们在客户端使用下：
EducationInfo educationInfo = new EducationInfo();
WantedJob1 wantedJob = new WantedJob1();
ResumeInfo1 templateResume = new ResumeInfo1("qaz", "18810002000", educationInfo, wantedJob);
educationInfo.enrollTime = new DateTime(2010, 7, 1);
educationInfo.leaveTime = new DateTime(2015, 1, 1);
educationInfo.schoolName = "wsx";
wantedJob1.companyName = "edc";
wantedJob1.eanrings = 1000;
//假定各个简历版本，仅仅companyName属性值不同。
var res1 = templateResume.Clone();
(res1 as ResumeInfo1).WantedJob.companyName = "baidu";
var res2 = templateResume.Clone();
(res1 as ResumeInfo1).WantedJob.companyName = "ali";但是我们得到了公司名称都是”ali”
这是典型的浅复制！
不能满足公司名称要区分的要求，继续修改，变为深度复制：
public class ResumeInfo2:ICloneable
{
public ResumeInfo2(string name, string telephone, EducationInfo educationInfo,WantedJob2 job)
{
this._name = name;
this._telephone = telephone;
this._educationInfo = educationInfo;
this._wantedJob = job;
} //
private void cloneJob(WantedJob2 job)
{
this._wantedJob = job.Clone() as WantedJob2;
} private string _name;
public string name
{
get { return this._name; }
}
private string _telephone;
public string
telephone
{
get { return _telephone; }
}
private EducationInfo _educationInfo;
public EducationInfo educationInfo
{
get { return _educationInfo; }
}
private WantedJob2 _wantedJob;
public WantedJob2 WantedJob
{
get { return _wantedJob; }
}
public object Clone()
{
cloneJob(this._wantedJob);
return new ResumeInfo2(_name,_telephone,_educationInfo,_wantedJob);
}
}求职意向对象2.0:
//WantedJob2 实现接口
public class WantedJob2:ICloneable
{
public string companyName { get; set; }
public double eanrings { get; set; }
public object Clone()
{
return this.MemberwiseClone();
}
}客户端调用：
//此处我们需要对WantedJob做深复制处理。
EducationInfo educationInfo = new EducationInfo();
WantedJob2 wantedJob = new WantedJob2();
ResumeInfo2 templateResume = new ResumeInfo2("qaz", "18810002000", educationInfo, wantedJob);
educationInfo.enrollTime = new DateTime(2010, 7, 1);
educationInfo.leaveTime = new DateTime(2015, 1, 1);
educationInfo.schoolName = "wsx";
wantedJob.companyName = "edc";
wantedJob.eanrings = 1000;
//假定各个简历版本，仅仅companyName属性值不同。
var res1 = templateResume.Clone();
(res1 as ResumeInfo2).WantedJob.companyName = "baidu";
var res2 = templateResume.Clone();
(res2 as ResumeInfo2).WantedJob.companyName = "ali";得到不同的公司名称！深度复制成功！
