source code：

base class：

class persion 

{

protected:

 string _name,_sex,_birthday,_number;

 int _age;

public:

 persion(string st_name,string st_sex,string st_birthday,int st_age,string st_number);

 persion(){}

 virtual bool SearchData(string studentnumber,string name)=0; 

 void DisplayData();  };

derived class：

class Student:virtual public persion

{

private:

 string _major;

 string _electiveslesson;

 int _electivessore;  

public: 

 int basesore[3];

 Student(){}

 Student(string st_name,string st_sex,string st_birthday,int st_age,string st_number);//report student information

 Student(string st_major,int st_chinese,int st_math,int st_english,string st_electiveslesson,int st_electivessore);

      

 bool SearchData(string studentnumber,string name);    

 void DisplayStudentData();         };

Student::Student(string st_name,string st_sex,string st_birthday,int st_age,string st_number)

:persion(st_name,st_sex,st_birthday,st_age,st_number)

{

}

Student::Student(string st_major,int st_chinese,int st_math,int st_english,string st_electiveslesson,int st_electivessore)

{  

 

 _major= st_major;

 basesore[0]=st_chinese;

 basesore[1]=st_math;

 basesore[2]=st_english;

 _electiveslesson=st_electiveslesson;

 _electivessore=st_electivessore;

}

bool Student::SearchData(string studentnumber,string name)  

{

 if(string(name)==string(_name)||string(studentnumber)==string(_number))

 {                        

  cout<<"search success!"<<endl;

  return true;

 }

 else

  return false;

} 

void Student::DisplayStudentData()            

{

 cout<<"major\t"<<"Chinese\t"<<"math\t"<<"English\t"<<"elective\t"<<"elective score"<<endl;

 cout<<_major<<"\t";

 for(int i=0;i<3;i++)

  cout<<basesore[i]<<"\t ";

 cout<<_electiveslesson<<"\t\t"<<_electivessore<<endl;

}

  case 1:

       {

        cout<<"Please input number,name: ";

        cin>>number>>name;

                          for(x=0;x<st_num;x++)

        {

         if (st_infor[x].SearchData(number,name)==true)

         {

          st_infor[x].DisplayData();

          score_infor[x].DisplayStudentData();

          break;

         }

        

         }

         if(x==st_num)

         cout<<"search no report!"<<endl;

        break;

          }