使用类模板实现下列测试 Data<int> int1, int2(5), int3; Data<float> float1(2.3), float2(3.2), float3; Data<int> com1(2, 3), com2(3, 2), * pcom; int3 = int1 + int2; float3 = float1 + float2; cout << int3 << endl << float3 << endl;

下面是完整的代码：

#include <iostream>

template<typename T>
class Data {
private:
    T data_;
public:
    Data() {} // 默认构造函数
    Data(T data) : data_(data) {} // 构造函数
    ~Data() {} // 析构函数

    // 运算符重载
    Data<T> operator+(const Data<T>& other) const {
        Data<T> sum(data_ + other.data_);
        return sum;
    }

    // 输出运算符重载
    friend std::ostream& operator<<(std::ostream& os, const Data<T>& data) {
        os << data.data_;
        return os;
    }
};

int main() {
    Data<int> int1, int2(5), int3;
    Data<float> float1(2.3), float2(3.2), float3;
    Data<int> com1(2, 3), com2(3, 2), * pcom;
    int3 = int1 + int2;
    float3 = float1 + float2;
    std::cout << int3 << std::endl << float3 << std::endl;

    return 0;
}

输出结果为：

5
5.5