源代码：

#include<iostream>
using namespace std;


template<class T>
T add(T x,T y){
T sum;
sum = x + y;
return sum;
}


template<class T>
T mul(T x,T y){
T res;
res = x*y;
return res;
}


int main()
{
int x1,y1;
float x2,y2;
cout << "请输入任意两个整数：" << endl;
cin >> x1 >> y1;
cout << "整数相加为：" << add(x1,y1) << endl;
cout << "整数相乘为：" << mul(x1,y1) << endl;
cout << "请输入任意两个小数：";
cin >> x2 >> y2;
cout << "小数相加为：" << add(x2,y2) << endl;
cout << "小数相乘为：" << mul(x2,y2) << endl;
return 0;
}

运行结果