#include
#include
#include
#include?

using?namespace?std;
int?n=0;

?

class?Student?
{
public:
?int?num;?
?char?name[12];
?char?study[12];?
?char?classe[12];?
?int?score[3];
?int?s;?
?Student?*next;??
};?

?

class?Studentmanage
{
private:
??Student?*head*p1*p2*p3;
????
public:
??Studentmanage?（）{};
??Student?*creat（）;
??Student?*add（Student?*head）;
??Student?*delet（Student?*head）;
??void?*search（Student?*head）;
??Student?*modify（Student?*head）;
??void?display（Student?*head）;
??void?write_file（Student?*head）;
??Student?*?read_file（）;
??~Studentmanage?（）{};???
};

?

Student?*Studentmanage::creat（）
{
???p1=p2=new?Student;
???head=NULL;
???cout<<“請輸入學生的基本信息：以學號為0結束。\n“;
???while（1）
????{
???????cout<<“學號:“;
???????cin>>p1->num;
???????if（p1->num==0）
???????{
???????????break;
???????}
???cout<<“姓名:“;
???cin>>p1->name;
???cout<<“院系:“;
???cin>>p1->study;
???cout<<“班級:“;
???cin>>p1->classe;
???cout<<“C++成績:“;
???cin>>p1->score[0];
???????cout<<“高數成績:“;
???????cin>>?p1->score[1];
???????cout<<“英語成績:“;
???????cin>>p1->score[2];
???????p1->s=p1->score[0]+p1->score[1]+p1->score[2];?
???????n=n+1;
???????if（n==1）
?????????head=p1;
???????else
?????????p2->next=p1;?
?????????p2=p1;
?????????p1=new?Student;?????????
????}
???????p2->next=NULL;
???????return?head;
}



Student?*Studentmanage::add（Student?*head）
{
???long?int?Num;?
???p1=p2=new?Student;
???p3=new?Student;
???p1=head;
???int?j=0;
???cout<<“請輸入你要添加學生的位置:\n“;
???cout<<“如果想放在頭，請輸入0??否則請輸入要添加前一個學生的學號：\n“;
???cin>>Num;
???if（Num==0）
???{??
????cout<<“請輸入要添加學生的信息！\n學號:“;
????cin>>p3->num;?
????cout<<“姓名:“;
????cin>>p3->name;
????cout<<“院系:“;
????cin>>p3->study;
????cout<<“班級：“;
????cin>>p3->classe;
????cout<<“C++成績:“;?
????cin>>p3->score[0];?
????cout<<“高數成績:“;
????cin>>p3->score[1];
????cout<<“英語成績:“;
????cin>>p3->score[2];
????p3->s=p3->score[0]+p3->score[1]+p3->score[2];
????p1=head;
????head=p3;
????p3->next=p1;
????n++;
????j=1;
??}
???else
???{
?????p1=head;
?????p2=p1->next;
?????while（p1!=NULL）
?????{
??????if（p1->num==Num）
??????{
???????cout<<“請輸入要添加學生的信息！\n學號:“;
???????cin>>p3->num;??
???????cout<<“姓名：“;
???????cin>>p3->name;
???????cout<<“院系：“;
???????cin>>p3->study;
???????cout<<“班級：“;
???????cin>>p3->classe;
???????cout<<“C++成績:“;?
???????cin>>p3->score[0];?
???????cout<<“高數成績:“;
???????cin>>p3->score[1];
???????cout<<“英語成績:“;
???????cin>>p3->score[2];
???????p3->s=p3->score[0]+p3->score[1]+p3->score[2];?????
???????p1->next=p3;
???????p3->next=p2;
???n++;
???j=1;
???break;
??}
??else
??????{?
???????p1=p2;
???????p2=p1->next;
??????}
?????}
????}
???if（j==0）
????cout<<“你要添加的位置不存在，添加失敗!\n“;
else
????cout<<“添加成功!\n“;
????return?head;
}


Student?*Studentmanage::delet（Student?*head）?
{
???long?int?Num;
???p2=p1=new?Student;
???cout<<“請輸入要刪除學生的學號：\n“;
???cin>>Num;
???p2=p1=head;
???

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----

?????文件??????10274??2018-06-29?21:18??Untitled1.cpp

-----------?---------??----------?-----??----

????????????????10274????????????????????1