例程實作 ----庖丁解羊（下）（轉）

例程實作
                        ----庖丁解羊（下）
#include <iostream>
#include <string>
using namespace std;
class Part{
public:
        virtual void Draw()=0;
        virtual ~Part(){}
};
class Shape{
public:
        Shape( string const& _s ):data( _s ){}
        void Draw( unsigned color )
                {
                cout << data << " with color :" << hex << color << endl;
                } //提供了借口，但是沒有實現繪圖
private:
        string data;
        //讀者可以自己實現繪圖部分
};
//絨毛，骨架，胸，腹，背，眼睛，鼻子，嘴巴，心，脾，肝，腸，腎，腳，尾巴，耳朵，肺，胃{{部分，顯示=輪廓+顏色}，輪廓[1]，顏色[1]}
class BasePart : public Part{
public:
        BasePart( string const& _s , unsigned _c ):shape( _s ),color( _c ){}
        void Draw()
                {
                shape.Draw( color );
                }
private:
        Shape shape;