如何编写单个类以使用不同的数字类型进行多次编译？

#include<iostream>

template<typename T>
class Number {
public:
    Number(T value) : value_(value) {}

    T getValue() const {
        return value_;
    }

private:
    T value_;
};

int main() {
    Number<int> intNumber(42);
    Number<float> floatNumber(3.14f);
    Number<double> doubleNumber(2.71828);

    std::cout << "intNumber: "<< intNumber.getValue()<< std::endl;
    std::cout << "floatNumber: "<< floatNumber.getValue()<< std::endl;
    std::cout << "doubleNumber: "<< doubleNumber.getValue()<< std::endl;

    return 0;
}