原型模式


		前序
这回小菜准备去应聘了,大鸟看了小菜的简历后感觉他都是在瞎扯.小菜准备了很多份相同的简历.于是大鸟便让小菜同学通过编写代码来实现相同的三份简历.
不久后小菜实现了第一版的代码.
小菜的第一版代码
#include <stdio.h>
 
class Resume
{
public:
       Resume(char* _name) : name(_name),sex(0),age(0),timeArea(0),company(0){}
       
       void SetPersonalInfo(char* _sex,char* _age)
       {
              sex = _sex;
              age = _age;
       }
       
       void SetWorkExperience(char* _timeArea,char* _company)
       {
              timeArea = _timeArea;
              company = _company;
       }
       
       void Display()
       {
              printf("%s %s %s
",name,sex,age);
              printf("工作经历:%s %s",timeArea,company);
       }
protected:
       char* name;
       char* sex;
       char* age;
       char* timeArea;
       char* company;
};
 
int main()
{
       Resume a("大鸟");
       a.SetPersonalInfo("男","29");
       a.SetWorkExperience("1998-2000","XX公司");
       
       Resume b("大鸟");
       b.SetPersonalInfo("男","29");
       b.SetWorkExperience("1998-2000","XX公司");
       
       Resume c("大鸟");
       c.SetPersonalInfo("男","29");
       c.SetWorkExperience("1998-2000","XX公司");
       
       a.Display();
       b.Display();
       c.Display();
       
       return 0;
}
大鸟看后说到:”三份简历需要三次初始化,这样客户端的代码很麻烦,如果要二十份那就要二十次初始化.”
小菜答到:”是的.如果写错了一个字那就要改二十次.”
于是大鸟便叫小菜用原型模式重写了一遍代码.
原型模式
通过给出一个原型对象来指明所要创建的对象的类型，然后用复制这个原型对象的方法创建出更多同类型的对象。原始模型模式允许动态的增加或减少产品类，产品类不需要非得有任何事先确定的等级结构，原始模型模式适用于任何的等级结构。缺点是每一个类都必须配备一个克隆方法。
实现方式(UML类图)

实现代码
#include <stdio.h>
 
class ICloneable
{
public:
       virtual ICloneable* Clone()=0;
};
 
// 工作经历
class WorkExperience : public ICloneable
{
public:
       char*& WorkDate()
       {
              return workDate;
       }
       
       char*& Company()
       {
              return company;
       }
       
       virtual WorkExperience* Clone()
       {
              WorkExperience* Result = new WorkExperience();
              Result->WorkDate() = workDate;
              Result->Company() = company;
              return Result;
       }
protected:
       char* workDate;
       char* company;
};
 
// 简历
class Resume : public ICloneable
{
public:
       Resume(char* _name) : name(_name),work(new WorkExperience()){}
       
       ~Resume()
       {
              delete work;
       }
       
       void SetPersonalInfo(char* _sex,char* _age)
       {
              sex = _sex;
              age = _age;
       }
       
       void SetWorkExperience(char* _workDate,char* _company)
       {
              work->WorkDate() = _workDate;
              work->Company() = _company;
       }
       
       void Display()
       {
              printf("%s %s %s
",name,sex,age);
              printf("工作经历:%s %s
",work->WorkDate(),work->Company());
       }
       
       virtual Resume* Clone()
       {
              Resume* Result = new Resume(work);
              Result->name = name;
              Result->sex = se

补充：软件开发 , C语言 ,