c++ - 如何在类中将 bool 值更改为字符串？

Question

#include <iostream>
#include <string>
using namespace std;

class Animal{
    protected:
        bool isMammal;
        bool isCarnivorous;    
    public:
        Animal(bool, bool, string);
        bool getIsMammal(){return isMammal;}
        bool getIsCarnivorous(){return isCarnivorous;}
};

Animal::Animal(bool isMammal, bool isCarnivorous){
    this -> isMammal = isMammal;
    this -> isCarnivorous = isCarnivorous;
}

int main(){    
    Animal Dog(true, true);
    cout << "A dog is " << Dog.getIsCarnivorous() << ", and is a " << Dog.getIsMammal();
    return 0;
}

假设我有这段代码。我期待有一个像这样的字符串输出狗是食肉动物，是哺乳动物。但相反，我得到了这个 A dog is a 1, and is a 1。

我该如何解决这个问题？

Answer 1

您可以使用条件运算符:

cout << "A dog is " << (Dog.GetIsCarnivorous() ? "" : "not ") << "carnivorous, and is " << (Dog.getIsMammal() ? "" : "not ") << "a mammal.";