一个简单的问题，输出那里为什么不行

楼主的代码看着太伤脑细胞，重写了代码

#include <iostream>
#include <string>

class Student{
    private:
        int age;
        std::string name;
    public:
        Student();
        Student(int m, const std::string & n);
        ~Student();
        void Show();
};

Student::Student()
{
    age = 0;
    name = " no name";
}

Student::Student(int m, const std::string & n)
{
    if (m < 0)
    {
        std::cout << "都没出身那来的年龄！" << std::endl;
    }   
    else
    {
        age = m;
        name = n;
    }
}

Student::~Student()
{
   
}

void Student::Show()
{
    std::cout<<"学生的年龄是："<< age <<"   学生的姓名是："<< name << std::endl;
}

int main()
{
    Student stu[2]={
        Student(20, "ww"),
        Student(18, "mo")
    };
   
    for(int i = 0;i < 2; i++)
    {
        stu[i].Show();
    }
    return 0;
}