这代码看不出是哪错了，编译不了

付笑

#include<iostream>
#include<string>
using namespace std;
class  People
{
     public:
   People(std::string  thename);
  protected:
   std:: string name;
};
class Man:public People
{

};
People::People(std::string thename)
{
name=thename;
}

int main()
{
    Man man("A");
   return 0;
}

请问是哪里错了

螃蟹009

#include<iostream>
#include<string>
using namespace std;
class  People
{
        public:
        
           People(std::string thename);
           
          protected:
          
   std::string name;
};
class Man:public People
{
    public:
    Man(std::string thename);
};
People::People(std::string thename)
{
    name=thename;
}
Man::Man(std::string thename):People(thename)
{

}

int main()
{
    Man man("A");
    man.eat();
    
   return 0;
}

你在主函数里的man中设置了参数所以要在子类中添加上参数！你可以在People中设置个输出的函数来检测！

付笑

明白了，谢谢

阔怀

{:1_1:}