怎样编表格

//下面采用十字链表的形式
//简单示意一下：
#include <iostream>
#include <string>
using namespace std;

/*分数类*/
class Score
{
public:
    Score( int s=0, Score *dp=NULL, Score *rp=NULL )
    {//默认下分数为零 向下、左的指针指向零
        sco = s;
        DownNext_ptr = dp;
        RighNext_ptr = rp;
    }
//private:
    int sco;//分
    Score *DownNext_ptr;//指向本科目中下个学生的成绩
    Score *RighNext_ptr;//指向本学生中下个科目的成绩
};
/*定义科目类*/
class Course
{
public:
    Course( string argu_N="未知", Score *sp=0, Course *cp=0 )
    {
        Cou_Name = argu_N;//名称
        Sco_ptr = sp;
        CouNext_ptr = cp;
    }
//private:
    string Cou_Name;//科目名
    Score *Sco_ptr;//指向科目成绩的的指针
    Course *CouNext_ptr;//指向下一个科目的指针
};
/*定义学生类*/
class Stud
{
public:
    Stud( string id="", string name="", Score *sp=NULL, Stud *stp=NULL )
    {
        S_Id = id;//学号赋值
        S_Name = name;//姓名赋值
        Sco_ptr = sp;
        StuNext_ptr = stp;
    }
//private:
    string S_Id;//学号
    string S_Name;//学生姓名
    Score *Sco_ptr;//指向成绩的指针
    Stud *StuNext_ptr;//指向下一个学生
};
/*定义班级类*/
class Class
{
public:
    Class( int i=0, int j=0 )
    {
        Stu_Num = i;
        Cou_Num = j;
        Stud_hp = new Stud;//头结点
        Cou_hp = new Course;//头结点
    }
    int Create_table();//创建表格
    int Show_table();//打印表格
    int Delete_Stu();//删除学生
    Stud * Search_Stu();//查找学生
    Score * Search_Cou();//查找成绩
    int Change_table();//修改表格
private:
    int Stu_Num; //学生数量
    int Cou_Num; //科目数量
    Stud *Stud_hp;//指向学生的头结点
    Course *Cou_hp;//指向科目的头结点
};

int Class::Create_table()
{
    int i=0;//
    string name;
    cout << "输入科目名称,科目总数不能超过" << Cou_Num
         << " 例如:语文 数学 英语 体育..." << endl;
    for(i=0; i<Cou_Num; ++i)
    {
        cout << "输入科目名称: "; cin >> name;
        Cou_hp->CouNext_ptr = new Course(name, NULL, Cou_hp->CouNext_ptr);//头插入
    }
    string id;
    Course *ctemp = 0;
    Score *stemp;
    int score;
    for(i=0; i<Stu_Num; ++i)
    {
        cout << "输入ID: "; cin >> id;
        cout << "输入名字: "; cin >> name;
        Stud_hp->StuNext_ptr = new Stud(id, name, NULL, Stud_hp->StuNext_ptr);
        ctemp = Cou_hp->CouNext_ptr;
        while( ctemp )
        {
            cout << "输入" << ctemp->Cou_Name << "成绩: "; cin >> score;
            //Stud_hp->StuNext_ptr->Sco_ptr = ctemp->Sco_ptr = new Score(score, ctemp->Sco_ptr, Stud_hp->Sco_ptr);
            if( !Stud_hp->StuNext_ptr->Sco_ptr )
            {
                Stud_hp->StuNext_ptr->Sco_ptr = ctemp->Sco_ptr = new Score(score, ctemp->Sco_ptr);
                stemp = Stud_hp->StuNext_ptr->Sco_ptr;
            }
            else
            {
                stemp->RighNext_ptr = ctemp->Sco_ptr = new Score(score, ctemp->Sco_ptr);
                stemp = stemp->RighNext_ptr;
            }
            ctemp = ctemp->CouNext_ptr;
        }   
    }

    return 0;
}
int Class::Show_table()
{
    Course *ctemp = Cou_hp->CouNext_ptr;
    cout << '\t';
    while(ctemp)//打印科目列表头
    {
        cout << '\t' << ctemp->Cou_Name;
        ctemp = ctemp->CouNext_ptr;
    }
    cout << endl;
    Stud *stemp = Stud_hp->StuNext_ptr;
    Score *temp;
    while( stemp )
    {
        cout << "名字:" << stemp->S_Name;
        temp = stemp->Sco_ptr;
        while( temp )
        {
            cout <<'\t' << temp->sco;
            temp = temp->RighNext_ptr;
        }
        cout << endl;
        cout << "学号:" << stemp->S_Id << endl;
        stemp = stemp->StuNext_ptr;
    }

    return 0;
}

int main()
{
    Class c(2, 3);//表示c班有2个人3门课程
    c.Create_table();
    c.Show_table();

    return 0;
}