模板方法模式：在一個方法中定義一個算法的骨架，而將一些步驟延遲到子類中。模板方法使得子類可以在不改變算法結構的情況下，重新定義算法中的某些步驟。——《HEAD FIRST 設計模式》

我的C++代碼：

h:

#ifndef DESIGN_TEMPLATEH

define DESIGN_TEMPLATEH
namespace templated{
class CaffeineBeverage
{
public:
  void prepareRecipe();
  void boilWater();
  void pourInCup();
public:
  virtual void brew() = 0;
  virtual void addCondiments() = 0;
};
class Tea : public CaffeineBeverage
{
public:
  virtual void brew();
  virtual void addCondiments();
};
class Coffee : public CaffeineBeverage
{
public:
  virtual void brew();
  virtual void addCondiments();
};
}
endif // DESIGN_TEMPLATEH</pre>

cpp: 
#include "template.h"

include <iostream>
using namespace templated;
void CaffeineBeverage::prepareRecipe()
{
  boilWater();
  brew();
  pourInCup();
  addCondiments();
}
void CaffeineBeverage::boilWater()
{
  std::cout << "boil water!" << std::endl;
}
void CaffeineBeverage::pourInCup()
{
  std::cout << "pour in cup!" << std::endl;
}
void Tea::brew()
{
  std::cout << "tea brew!" << std::endl;
}
void Tea::addCondiments()
{
  std::cout << "tea add condiments!" << std::endl;
}
void Coffee::brew()
{
  std::cout << "coffee brew!" << std::endl;
}
void Coffee::addCondiments()
{
  std::cout << "coffee add condiments!" << std::endl;
}</pre>

原文 http://www.ituring.com.cn/article/200355