C++学生管理系统

1、面向对象程序设计课程实验报告学生成绩管理系统班级计算机应用091班姓名唐俊驰学号 2009052023日期 2010-12-26需求分析1. 程序的功能：学生数据的录入、添加、修改与删除；成绩统计并排名；学生数据的 读取与存储等基本功能。2. 输入输出的要求：输入学生的成绩及处理要求；输出自己想得到的结果3.测试数据。zha ng123586974wang456789658yang789896859详细设计1. 程序框架设计：设置了添加、修改、删除、查找、排序和对数据的读取、保存等功能。2. 程序详细设计添加：创建一个新的分类，用输入的变量初始化这个类，并用指针链接上一个对象。 修改：先通过链

2、表找到要修改的对象，在输入要修改的值，利用类内函数对值进行 修改。删除：根据输入的条件找到要删除的对象，将此对象的next指针赋值给上一个对象的n ext值。查找：按照学号或者姓名按链表查找对象，找到后输出该对象的基本信息。排序：利用比较法，按照要求的标准进行排序。数据的读取和保存：文件的打开和关闭，并按照存储的格式读取。三、调试分析1. 调试中遇到的问题及对问题的解决方法四、使用说明及测试结果1. 系统配置： Windows XP SP3 ; VC 6.0系统运行效果图|c； *P； C+STUDebugstu. exe*日回田 |&total6 * *"turn choo

3、se<l-6 -1戶.have5message.*j ianstudent1 snumbcrs666 r nath: 57, language : 85 ” enf J.iah = 47 inzhan泸J snumbemath = 58,language ：69,english：74(. inwangstudent1snumbei*&45& ,ma七h= ?魁 * language: 96,en$fllsh：ES, inf e if estudcntJ enumbei?s3948 ,natli： 87P lanQfuae : 57, englisli ：69 , iyan

4、gstuclent1 snur»bers789,niAt>i = S?,lanquage：68,english：59, inEcore Ey£tei*m二1dd2delete3change| 4"okFofi五、源程序(带注释)1 程序代码/*stu.cpp*/#in clude<iostream>#in elude ".ClassHead.h"using n amespace std;void mai n() char c;cla a;do cout<<"n score systerm:n"c

5、out<<" 1adn"cout<<" 2-delen"cout<<" 3change"cout<<" 4 look ffem"cout<<" 5paiXU'cout<<" 6saVe"cout<<" 7-read"cout<<" 8-back"cout<<"choose(1-8):"cin> >c;

6、switch(c) case '1':a.sadd();break;case '2':a.sremove(); break;case '3':a.samend(); break;case '4':a.ssearch(); break;case '5':a.staxis(); break;case '6':a.ssave(); break;case '7':a.sload(); break;while(c!='8');/* 类的定义及其成员函数的实现 */#ifndef

7、 _CLASSHEAD_H#define _CLASSHEAD_H#include<iomanip>#include<fstream>#include<string>#define max 80;using namespace std;class student public:student *next;public:string name;long num;int x,y,z;int AA; void play() cout << name << "student's numbers" <<

8、num << ",math:" << x<< ",language:" << y << ",english:" << z << ",in total:" << AA << endl; ;student(string sname,long snum,int sx,int sy,int sz) name = sname;num = snum;x = sx;y = sy;z = sz; ;class cla pub

9、lic:cla() stu = 0; sload();cla() student *p; p = stu; while(p) p = p->next; delete stu; stu = p; stu = 0;void sadd(); void sremove();void samend(); void ssearch();void staxis(); void ssave();void sload();void pxh(); void psx(); void pyw(); void pyy();void pAA();private:student *stu; ;void cla:sad

10、d() student *q; string name1; long num1; int x1,y1,z1;system("cls");cout << "n *add student* n" << endl;cout << "please input:" << endl;cout << "nametnumbertmathtlanguagetenglish:" << endl; cin >> name1 >> num1 &

11、gt;> x1 >> y1 >> z1;q = new student(name1,num1,x1,y1,z1);q->next = 0;q->AA = x1 + y1 + z1;if(stu) student *t;t = stu; if(t->num = num1) cout << "number has already been recorded ， please input again" << endl; return;while(t->next) if(t->num = num1)

12、 cout << "number has already been recorded ， please input again" << endl; return;t = t->next;t->next = q;else stu = q;cout << "down" << endl;void cla:sremove() system("cls"); int num1;cout << "n* delete *n"cout << &quo

13、t;please input the number you want to delete:" cin >> num1;student *p1,*p2;p1 = stu; while(p1) if(p1->num = num1) break;else p2 = p1; p1 = p1->next;if(p1 != NULL) p1->play();cout << "Y/N" << endl;char c;cin >> c; if(toupper(c)!='Y') return;if(p

14、1=stu) stu = p1->next; delete p1;else p2->next = p1->next; delete p1;cout << "find the number is:" << num1 << "deleten" elsecout << "there's no information about that!n"void cla:samend() system("cls"); long num1;cout <&l

15、t; "n* change the student number*n"cout << "input the changing number"cin >> num1;student *p1,*p2;p1 = stu;while(p1) if(p1->num = num1)break;else p2 = p1;p1 = p1->next;if(p1!=NULL) cout << "the number is" << num1 << "'informa

16、tion" << endl;"namecout << "<<p1->name<<"math"<<p1->x<<"language"<<p1->y<<"english"<<p1->z<<endl;cout<<"please the changing information ： name math language english"&l

17、t;<endl; cin>>p1->name>>p1->x>>p1->y>>p1->z;p1->AA=p1->x+p1->y+p1->z;cout<<"change suceed"<<endl;elsecout<<"no found!n"void cla:ssearch() system("cls");cout<<"n* look for *n"<<end

18、l;cout<<"please input the way ： "<<endl;cout<<"1.number"<<endl;cout<<"2.name"<<endl;cout<<"3.return"<<endl;char c;cin>>c;switch (c) case '1':long num1;cout<<"the number"<<endl;

19、cin>>num1;student *p1,*p2;p1=stu;while(p1) if(p1->num=num1)break;else p2=p1; p1=p1->next;if(p1!=NULL) cout<<"muber is"<<num1<<" information"<<endl; cout<<"name:"<<p1->name<<" math:"<<p1->x<&l

20、t;" english:"<<p1->z<<endl;cout<<"down"else cout<<"no foud!n"break;case '2':string name1;cout<<"the name"<<endl;cin>>name1;student *p1,*p2;p1=stu;while(p1) if(p1->name=name1)break;else p2=p1; p1=p1->ne

21、xt;if(p1!=NULL) cout<<name1<<"information"<<endl; cout<<"number:"<<p1->num<<" math:"<<p1->x<<" english:"<<p1->z<<endl;cout<<"down."elselanguage:"<<p1->y<<&

22、quot;language:"<<p1->y<<"cout<<"no foud!n"break;case '3':return;void cla:pxh() student *p1,*p2;int n;p1=stu;n=1;while(p1->next) n+;p1=p1->next;cout<<"have"<<n<<"message."<<endl; int i;p1=stu;for(i=1;i&

23、lt;n;i+) p1=stu;if (p1->num>p1->next->num) p2=p1->next; p1->next=p1->next->next; p2->next=p1;stu=p2;p1=stu;while(p1->next->next) p2=p1;p1=p1->next;if(p1->num>p1->next->num) p2->next=p1->next; p1->next=p1->next->next; p2->next->next

24、=p1; p1=p2->next;p1=stu;do p1->play();p1=p1->next;while(p1);void cla:psx() student *p1,*p2;int n;p1=stu;n=1;while(p1->next) n+;p1=p1->next;cout<<"have"<<n<<"message."<<endl; int i;p1=stu;for(i=1;i<n;i+) p1=stu;if (p1->x>p1->next-

25、>x) p2=p1->next; p1->next=p1->next->next; p2->next=p1;stu=p2;p1=stu;while(p1->next->next) p2=p1;p1=p1->next; if(p1->x>p1->next->x) p2->next=p1->next; p1->next=p1->next->next; p2->next->next=p1; p1=p2->next;p1=stu;do p1->play();p1=p1-&

26、gt;next;while(p1);void cla:pyw() student *p1,*p2;int n;p1=stu;n=1;while(p1->next) n+;p1=p1->next;cout<<"have"<<n<<"message."<<endl; int i;p1=stu;for(i=1;i<n;i+) p1=stu;if (p1->y>p1->next->y) p2=p1->next; p1->next=p1->next->

27、next; p2->next=p1;stu=p2;p1=stu;while(p1->next->next) p2=p1;p1=p1->next; if(p1->y>p1->next->y) p2->next=p1->next; p1->next=p1->next->next; p2->next->next=p1; p1=p2->next;p1=stu;do p1->play();p1=p1->next;while(p1);void cla:pyy() student *p1,*p2;in

28、t n;p1=stu;n=1;while(p1->next) n+;p1=p1->next;cout<<"have"<<n<<"message."<<endl; int i;p1=stu;for(i=1;i<n;i+) p1=stu;if (p1->z>p1->next->z) p2=p1->next; p1->next=p1->next->next; p2->next=p1;stu=p2;p1=stu;while(p1->nex

29、t->next) p2=p1;p1=p1->next;if(p1->z>p1->next->z) p2->next=p1->next; p1->next=p1->next->next; p2->next->next=p1; p1=p2->next;p1=stu;do p1->play();p1=p1->next;while(p1);void cla:pAA() student *p1,*p2;int n;p1=stu;n=1;while(p1->next) n+;p1=p1->next;

30、cout<<"have"<<n<<"message."<<endl;int i;p1=stu;for(i=1;i<n;i+) p1=stu;if (p1->AA>p1->next->AA) p2=p1->next; p1->next=p1->next->next; p2->next=p1; / 头结点交换 stu=p2;p1=stu;while(p1->next->next) / 中间的交换 p2=p1;p1=p1->next;

31、if(p1->AA>p1->next->AA) p2->next=p1->next; p1->next=p1->next->next; p2->next->next=p1; p1=p2->next; / 交换p1=stu;do p1->play();p1=p1->next;while(p1);void cla:staxis() /排序system("cls");char c;cout<<" 请选择以何种方式排序： "<<endl;cout<&

32、lt;"1 number"<<endl;cout<<"2 math"<<endl;cout<<"3 Ianguage"<<endl;cout<<"4 english"<<endl;cout<<" 5total"<<e ndl;cout<<"6 return"<<endl;cout<<"choose(1-6)"<<endl; cin>>c;switch (c) case '1':pxh(); break;case '2':psx(); break;case '3':pyw(); break;case