间接寻址设计一个学生成绩系统

#include<iostream.h>
struct STU
{
int number;
char* name;
char* Class;
float math_grade;
int next;
}Stu[5];


class Student
{


public:
Student();
Student(char*n[],char*c[],int num[],float m[],int l);
~Student(){}
void Insert(char*n,char*c,int num,float m,int l);//姓名，班级，学号，成绩
void Delete(int l);
void Locate(int l);
void Print();
private:
STU *s[5];
int length;
};




Student::Student(char*n[],char*c[],int num[],float m[],int l)
{
for(int i=0;i<5;i++)
    {
s[i]=&Stu[i];
}
for(i=0;i<4;i++)
{
Stu[i].name=n[i];
        Stu[i].Class=c[i];
        Stu[i].number=num[i];
        Stu[i].math_grade=m[i];
}
length=l;
 }




void Student::Insert(char*n,char*c,int num,float m,int l)
{
if(length>=5) cout<<"数据已满."<<endl;
else
{
length++;
Stu[length-1].name=n;
Stu[length-1].Class=c;
        Stu[length-1].number=num;
        Stu[length-1].math_grade=m;
    for(int i=length;i>l;i--)
{
    s[i-1]=s[i-2];
}
cout<<"  列入成功."<<endl;
s[l-1]=&Stu[length-1];
}
}








void Student::Delete(int l)
 {

if(length==0) cout<<"无数据."<<endl;
else if(l<1||l>length) cout<<"位置错误."<<endl;
    else
{
cout<<s[l-1]->name<<"的数据已被删除."<<endl;
        for(int i=l;i<length;i++)
{
   s[i-1]=s[i];
} 
length--;s[length]=NULL;
}
}
void Student::Locate(int l)
{
    if(length==0) cout<<"无数据"<<endl;
    else if(l<1||l>length) cout<<"位置错误"<<endl;
    else
{
cout<<"第"<<l<<"位的数据为:"<<endl;
cout<<"姓名:"<<s[l-1]->name<<endl;
cout<<"班级"<<s[l-1]->Class<<endl;
cout<<"学号"<<s[l-1]->number<<endl;
        cout<<"数学成绩"<<s[l-1]->math_grade<<endl;
cout<<endl;
}
}
void Student::Print()
{
int i;
    if(length==0) cout<<"无数据."<<endl;
else
{
   cout<<"姓名      班级      学号    数学成绩"<<endl;
   for(i=0;i<length;i++)
   {
cout<<s[i]->name<<"    ";
cout<<s[i]->Class<<"    ";
cout<<s[i]->number<<"     ";
cout<<s[i]->math_grade<<endl;
   }
}
}

int main()
{
int p;
int y;
float z;
    char x[5];
char r[10];
char*n[4]={"小明","小红","小花","小青"};
char*c[4]={"信管1171","信管1172","计科1171","信管1161"};
int num[4]={2011,2012,2014,2017};
float m[4]={80,90,100,89.5};
Student a(n,c,num,m,4);
    cout<<"录入的数据为:"<<endl;
    a.Print();
cout<<endl;
cout<<"插入数据"<<endl;
cout<<endl;
    cout<<"输入你要列入的姓名:";
    cin>>x;
    cout<<"输入你要列入的班级:";
    cin>>r;
cout<<"输入你要列入的学号:";
    cin>>y;
cout<<"输入你要列入的数学成绩:";
    cin>>z;
    cout<<"输入你要列入的位置:";
cin>>p;
cout<<endl;
a.Insert(x,r,y,z,p);
a.Print();
cout<<endl;
cout<<"要删除的位置:";
cin>>p;
a.Delete(p);
cout<<endl;
cout<<"要查找的数据的位置:";
cin>>p; 
a.Locate(p);
cout<<endl;
cout<<"各成员数据如下:"<<endl;
a.Print();
    return 0;

}

运行结果：