设计模式----原形模式

原形模式类似于拷贝构造函数，提供一种可以直接拷贝原对象的方法，这种方法比较简单，就不画类图了，直接看一下对应代码:

#include <iostream>
#include <string>
using namespace std;class Person {
public:virtual Person *Clone() = 0;virtual void Print() = 0;
};class CppProgramer : public Person {
public:CppProgramer() : m_Name(""), m_Age(0), m_pAddress(NULL) {}CppProgramer(string name, int age, const char *pszAddr) : m_Name(name), m_Age(age), m_pAddress(new char[strlen(pszAddr)]) {}void Print() {cout << "C++程序员的姓名: " << m_Name << "年龄: " << m_Age << endl;}Person *Clone() {CppProgramer* tmp = new CppProgramer;tmp->m_Name = this->m_Name;tmp->m_Age = this->m_Age;int iLen = strlen(m_pAddress) + 1;tmp->m_pAddress = new char[iLen];strcpy(tmp->m_pAddress, this->m_pAddress);return(tmp);}~CppProgramer() {if (m_pAddress) {delete[] m_pAddress;m_pAddress = NULL;}}
private:string m_Name;char* m_pAddress;int m_Age;
};int main() {const char* pszAddr = "中山路";CppProgramer cpp("YangMing", 15, pszAddr);Person* p = cpp.Clone();p->Print();system("pause");return(0);
}

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