由 dawei 头文件“HEAD.h”：
#ifndef HEAD_H
#define HEAD_H
template<typename T>
class ?Cal
{
public:
T add(T x,T y);
T multiply(T x,T y);
};
#endif
源文件：
#include<iostream>
#include"HEAD.h"
#include<stdlib.h>
#include<iomanip>
using namespace std;
template<typename T>
T Cal<T>::add(T x,T y)
{
return x + y;
}
template<typename T>
T Cal<T>::multiply(T x,T y)
{
return x*y;
}
int main()
{
Cal<int> x;
Cal<float> y;
cout << "9+8=" << x.add(9,8) << endl;
cout << "9.1+6.1=" << y.add(9.1,6.1) << endl;
cout << "9*8=" << x.multiply(9,8) << endl;
cout << "9.1*6.1=" << y.multiply(9.1,6.1) << endl;
system("pause");
return 0;
}
