描述 编写类模板，类体内定义成员函数，使计算器可以实现不同类型数据（int，float等）的加、减、乘、除运算。（类体内实现） 主函数为： int main() { Calculate cal1; float x1=1.1,y1=2.2; cout<<cal1.add(x1,y1)<<endl; cout<<cal1.mimus(x1,y1)<<endl; cout<<cal1.multiply(x1,y1)<<endl; cout<<cal1.divide(x1,y1)<<endl; Calculate cal2; int x2=1,y2=2; cout<<cal2.add(x2,y2)<<endl; cout<<cal2.mimus(x2,y2)<<endl; cout<<cal2.multiply(x2,y2)<<endl; cout<<cal2.divide(x2,y2)<<endl; return 0; } 输入 NULL 输出 3.3 -1.1 2.42 0.5 3 -1 2 0 样例输入 NULL 样例输出 3.3 -1.1 2.42 0.5 3 -1 2 0

#include <iostream>
using namespace std;

template<typename T>
class Calculate {
public:
    T add(T a, T b) {
        return a + b;
    }
    T minus(T a, T b) {
        return a - b;
    }
    T multiply(T a, T b) {
        return a * b;
    }
    T divide(T a, T b) {
        return a / b;
    }
};

int main() {
    Calculate<float> cal1;
    float x1 = 1.1, y1 = 2.2;
    cout << cal1.add(x1, y1) << endl;
    cout << cal1.minus(x1, y1) << endl;
    cout << cal1.multiply(x1, y1) << endl;
    cout << cal1.divide(x1, y1) << endl;

    Calculate<int> cal2;
    int x2 = 1, y2 = 2;
    cout << cal2.add(x2, y2) << endl;
    cout << cal2.minus(x2, y2) << endl;
    cout << cal2.multiply(x2, y2) << endl;
    cout << cal2.divide(x2, y2) << endl;

    return 0;
}