C++与工厂模式

#include "iostream"
using namespace std;

class Code
{
public :
    Code(){};
    virtual void print(string str)=0;
    virtual ~Code(){};
};

class CSharp : public Code
{
public :
    CSharp(){}
    void print(string str)
    {
        cout<<"Console.WriteLine(\""<<str<<"\");"<<endl;
    }
};

class CFuck : public Code
{
public :
    CFuck(){}
    void print(string str)
    {
        cout<<"cout<<(\""<<str<<"\");"<<endl;
    }
   
};

class CProgram : public Code
{
public :
    CProgram(){}
    void print(string str)
    {
        cout<<"printf(\""<<str<<"\");"<<endl;
    }

};

class Java :public Code
{
public :
    Java(){}
    void print(string str)
    {
        cout<<"System.out.printf(\""<<str<<"\");"<<endl;
    }
};

class CodeFactory
{
public :
    Code * createWhatCode(string name)
    {

        if(name == "CSharp")
            return new CSharp();
        if(name == "Java")
            return new Java();
        if(name == "CProgram")
            return new CProgram();
        if(name == "CFuck")
            return new CFuck();
    }
};
main()
{
    CodeFactory factory;
    string programName[4]={"CSharp","CProgram","CFuck","Java"};

    for(int i=0;i<4;i++)
    {
        Code * code = factory.createWhatCode(programName[i]);
        code->print("hello world");
        delete code;
    }

}