#include<iostream>

#include<string>

using namespace std;

class Student

{

public:

Student();

Student(char*,char*,double);

void SeInfo(char*,char*,double);//设置属性值

void ShowInfo();//输出

    private:

char no[10];

char name[20];

double score;

};

Student::Student()

{

strcpy(no,"NULL");

strcpy(name,"NULL");

score=0;

}

Student::Student(char * no,char * name,double score)

{

strcpy(this->no,no);//this 拷贝

strcpy(this->name,name);

this->score=score;

}

void Student::SeInfo(char *no,char *name,double *score)

{

strcpy(this->no,no);

strcpy(this->name,name);

    this->score=score;

}

void ShowInfo()

{

cout<<"no"<<"   "<<"name"<<"     "<<"score"<<endl;

}

Student stu[1000]={Student("1001","jack",88),

                   Student("1002","tony",79),

  Student("1003","lucy",92),

                   Student("1004","mary",78),

                   Student("1005","sary",95),

                   Student("1006","jane",86),

};

int count=6;//对象数组中元素个数

//函数声明

void ShowAll();//展示所有信息

void InsertScore();

void DeleteScore();

    int main()

{

ShowAll();

int choice;//获取用户输入

while(true)//无限循环

{

cout<<"请选择编号 1:插入成绩 2: 删除成绩  3:浏览成绩 0:退出"<<endl;

   cin>>choice;

switch(choice)

{

case 1:

InsertScore();

break;

case 2:

DeleteScore();

break;

case 3:

ShowAll();

break;

default:

cout<<"退出系统!"<<endl;

exit(0);

break;

}

} 

return 0;

}

void ShowAll()//显示所有成绩

{

cout<<"流水号"<<"********"<<"学号"<<"**********"<<"姓名"<<"*******"<<"成绩"<<endl;

for(int i=0;i<count;i++)

{

cout<<i+1<<"  ";

stu[i].ShowInfo();

}

}

void InsertScore()//插入成绩

{

int index;

    cout<<"请输入插入位置:";

    cin>>index;

    char no [10];

    char name[20];

    double score;

    cout<<"请输入学号:";

    cin>>no;

cout<<"请输入姓名:";

cin>>name;

cout<<"请输入成绩:";

cin>>score;

Student s;

s.SeInfo(no,name,score);

int i;

for (i=count;i>=index-1;i--)

{

stu[i+1]=stu[i];

}

stu[index-1]=s;

count++;

cout<<"插入成功!"<<endl;

}

void DeleteScore()//删除成绩

{

int index;

cout<<"请输入插入位置:";

cin>>index;

int i;

for(i=index-1;i<count;i++)

{

stu[i]=stu[i+1];

}

count--;

cout<<"删除成功!"<<endl;

}