设计模式学习-----组合模式 - JAVA

组合模式

　　　GOOD：整体和部分可以被一致对待（如WORD中复制一个文字、一段文字、一篇文章都是一样的操作）

[html]
#include
#include
#include
using namespace std;

class Component
{
public:
string m_strName;
Component(string strName)
{
m_strName = strName;
}
virtual void Add(Component* com)=0;
virtual void Display(int nDepth)=0;
};

class Leaf : public Component
{
public:
Leaf(string strName): Component(strName){}

virtual void Add(Component* com)
{
cout<<"leaf can't add"< }

virtual void Display(int nDepth)
{
string strtemp;
for(int i=0; i < nDepth; i++)
{
strtemp+="-";
}
strtemp += m_strName;
cout< }
};

class Composite : public Component
{
private:
vector m_component;
public:
Composite(string strName) : Component(strName){}

virtual void Add(Component* com)
{
m_component.push_back(com);
}

virtual void Display(int nDepth)
{
string strtemp;
for(int i=0; i < nDepth; i++)
{
strtemp+="-";
}
strtemp += m_strName;
cout<
vector::iterator p=m_component.begin();
while (p!=m_component.end())
{
(*p)->Display(nDepth+2);
p++;
}
}

};

//客户端
int main()
{
Composite* p=new Composite("小王");
p->Add(new Leaf("小李"));
p->Add(new Leaf("小赵"));

Composite* p1 = new Composite("小小五");
p1->Add(new Leaf("大三"));

p->Add(p1);
p->Display(1);
return 0;
}

[html]
#include
#include
#include
using namespace std;

class Company
{
protected:
string m_strName;
public:
Company(string strName)
{
m_strName = strName;
}

virtual void Add(Company* c)=0;
virtual void Display(int nDepth)=0;
virtual void LineOfDuty()=0;
};

class ConcreteCompany: public Company
{
private:
vector m_company;
public:
ConcreteCompany(string strName):Company(strName){}

virtual void Add(Company* c)
{
m_company.push_back(c);
}
virtual void Display(int nDepth)
{
string strtemp;
for(int i=0; i < nDepth; i++)
{
strtemp += "-";
}
strtemp +=m_strName;
cout<
vector::iterator p=m_company.begin();
while (p!=m_company.end())
{
(*p)->Display(nDepth+2);
p++;
}
}
virtual void LineOfDuty()
{
vector::iterator p=m_company.begin();
while (p!=m_company.end())
{
(*p)->LineOfDuty();
p++;
}
}
};

class HrDepartment : public Company
{
public:

HrDepartment(string strname) : Company(strname){}

virtual void Display(int nDepth)
{
string strtemp;
for(int i = 0; i < nDepth; i++)
{
strtemp += "-";
}

strtemp += m_strName;
cout< }
virtual void Add(Company* c)
{
cout<<"error"< }

virtual void LineOfDuty()
{
cout< }
};

//客户端：
int main()
{ www.2cto.com
ConcreteCompany *p = new ConcreteCompany("清华大学");
p->Add(new HrDepartment("清华大学人才部"));

ConcreteCompany *p1 = new ConcreteCompany("数学系");
p1->Add(new HrDepartment("数学系人才部"));

ConcreteCompany *p2 = new ConcreteCompany("物理系");
p2->Add(new HrDepartment("物理系人才部"));

p->Add(p1);
p->Add(p

设计模式学习-----组合模式(一)