int add(int x, int y)

{

   return x+y;

}

 float add(float x, float y)

{

   return x+y;

}

#include <iostream>

using namespace std;

template <typename Type> //这一步说明了你要定义一个模板类，数据类型名字是Type(比如可能是int, float,等等)

class Calc

{

public:

    Calc ();

    Type multiply (Type x, Type y);//类型都是Type

    Type add (Type x, Type y);//这里是函数的声明

};

template <typename Type> Calc<Type>::Calc ()

{ }

template <typename Type> Type Calc<Type>::multiply (Type x, Type y)

{

    return x * y;

}

template <typename Type> Type Calc<Type>::add (Type x, Type y)//这里是函数定义

{

    return x+y;

}

int main(void)

{

    Calc<int> person;

    int m=;

    int n=;

    int sum=person.add(m,n);

    cout<<"the result is "<<sum<<endl;

    return ;

}

 Calc  person;