学生成绩管理系统源代码

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1、学生成绩管理系统源代码#include#include#includeusingnamespacestd;structStu_score{intnum;intmark[3];stringname;Stu_score*next;floataver;};classStudent{private:Stu_score*head;voidSwap(Stu_score*,Stu_score*);voidPrint(Stu_score*);Stu_score*Fin

2、d(int);public:Student(){head=NULL;}Stu_score*get_head(){returnhead;}intListCount();voidAddItem(intnum,stringname,intmark[3]);voidRemoveItem(int);voidList();voidSort_by_num();voidSort_by_aver();voidSearch(int);intAverage();};intStudent::ListCount(){if(!hea

3、d)return0;Stu_score*p=head;intn=0;while(p){n++;p=p->next;}returnn;}voidStudent::AddItem(intnum,stringname,intmark[3]){if(!head){head=newStu_score;for(inti=0;i<3;i++)head->mark[i]=mark[i];head->num=num;head->name=name;head->next=NULL;return;}Stu_score*t=he

4、ad;while(t&&t->num!=num)t=t->next;if(t){cout<<"操作失败：学号为"<<"的记录已经存在！"<next)p=p->next;Stu_score*p1=newStu_score;p1->num=num;for(inti=0;i<3;i++)p1->mark[i]=mark[i];p1->name=name;p1->next=NULL;p1->next=p1;return;}voidSt

5、udent::RemoveItem(intnum){Stu_score*t=Find(num);if(!t)return;Stu_score*p=head;if(head==t){head=head->next;deletep;cout<<"成功删除学号为"<next!=t)p=p->next;Stu_score*p1=p->next;p->next=p1->next;deletep1;cout<<"成功删除的学号为"<<

6、num<<"的记录！"<num<<"tt";cout<name<<"tt";cout<mark[0]<<"t"<mark[1]<<"t"<mark[2]<<"t"<aver<

7、：当前的列表为空！"<next;}cout<

8、"学号tt姓名tt英语t数学t化学t平均分"<num==num)break;p=p->next;}if(!p){cou