C++课程设计程序

#include <iostream>

#include <cstring>

using std::cout;

using std::endl;

class Course{

public:

Course():name(0),next(0){}

Course(char n[]);

~Course(){delete[] name;}

void setName(char n[]);

void setNextCourse(Course* c);

char *getName(){return name;}

Course* getNext(){return next;}

private:

char* name;

Course* next;

};

Course::Course(char n[]){

name=new char[strlen(n)+1];

strcpy(this->name,n);

}

void Course::setName(char n[]){

delete[] name;

this->name=new char[strlen(n)+1];

strcpy(this->name,n);

}

void Course::setNextCourse(Course* c){

this->next=c;

}

class Person{

public:

Person():id(0),name(0),courses(0){}

Person(char i[],char n[]);

~Person();

void setID(char i[]);

void setName(char n[]);

char *getID(){return id;}

char *getName(){return name;}

void addCourses(Course* c);

virtual void display();

protected:

char* id;

char* name;

Course* courses;

};

Person::Person(char i[],char n[]){

this->id=new char[strlen(i)+1];

strcpy(this->id,i);

this->name=new char[strlen(n)+1];

strcpy(this->name,n);

}

void Person::setID(char i[]){

delete[] id;

this->id=new char[strlen(i)+1];

strcpy(this->id,i);

}

Person::~Person(){

Course* c;

while(courses!=0){

c=courses->getNext();

delete courses;

courses=c;

}

delete[] id;

delete[] name;

}

void Person::setName(char n[]){

delete[] name;

this->name=new char[strlen(n)+1];

strcpy(this->name,n);

}

void Person::display(){

cout<<"ID: "<<id<<" Name: "<<name<<" Courses: ";

Course* c=courses;

while(c!=0){

cout<<c->getName()<<" ";

c=c->getNext();

}

cout<<endl;

}

void Person::addCourses(Course* c){

if(courses==0) courses=c;

else{

Course* t=courses;

while(t->getNext()!=0){

t=t->getNext();

}

t->setNextCourse(c);

}

}

class Teacher:public Person{

public:

Teacher():Person(),position(0){}

Teacher(char id[],char name[],char position[]);

Teacher(const Teacher& t);

~Teacher();

void display();

void setPosition(char p[]);

char *getPosition(){return position;}

private:

char* position;

};

Teacher::Teacher(char i[], char n[], char p[]):Person(i,n){

position=new char[strlen(position)+1];

strcpy(this->position,p);

}

Teacher::Teacher(const Teacher& t):Person(){

this->id=new char[strlen(t.id)+1];

strcpy(this->id,t.id);

this->name=new char[strlen(http://www.77cn.com.cn)+1];

strcpy(this->name,http://www.77cn.com.cn);

this->position=new char[strlen(t.position)+1];

strcpy(this->position,t.position);

}

Teacher::~Teacher(){

delete[] position;

}

void Teacher::display(){

cout<<"ID: "<<id<<" Name: "<<name<<" Position: "<<position<<" Courses to teacher: ";

Course* c=courses;

while(c!=0){

cout<<c->getName()<<" ";

c=c->getNext();

}

cout<<endl;

}

void Teacher::setPosition(char p[]){

delete[] position;

this->position=new char[strlen(p)+1];

strcpy(this->position,p);

}

class Postgraduate:public Person{

public:

Postgraduate():Person(){degree=new

char[strlen("Postgraduate")+1];strcpy(this->degree,"Postgraduate");} Postgraduate(char i[],char n[]);

Postgraduate(const Postgraduate& p);

~Postgraduate();

void display();

char *getDegree(){return degree;}

private:

char* degree;

};

Postgraduate::Postgraduate(char i[],char n[]):Person(i,n){

this->degree=new char[strlen("Postgraduate")+1];

strcpy(this->degree,"Postgraduate");

}

Postgraduate::Postgraduate(const Postgraduate& p):Person(){

this->id=new char[strlen(p.id)+1];

strcpy(this->id,p.id);

this->name=new char[strlen(http://www.77cn.com.cn)+1];

strcpy(this->name,http://www.77cn.com.cn);

this->degree=new char[strlen("Postgraduate")+1];

strcpy(this->degree,"Postgraduate");

}

Postgraduate::~Postgraduate(){

delete[] degree;

}

void Postgraduate::display(){

cout<<"ID: "<<id<<" Name: "<<name<<" Degree: "<<degree<<" Courses to study: ";

Course* c=courses;

while(c!=0){

cout<<c->getName()<<" ";

c=c->getNext();

}

cout<<endl;

}

class Undergraduate:public Person{

public:

Undergraduate():Person(){degree=new

char[strlen("Undergraduate")+1];strcpy(this->degree,"Undergraduate");} Undergraduate(char i[],char n[]);

Undergraduate(const Undergraduate& u);

~Undergraduate();

void display();

char *getDegree(){return degree;}

private:

char* degree;

};

Undergraduate::Undergraduate(char i[], char n[]):Person(i,n){

this->degree=new char[strlen("Undergraduate")+1];

strcpy(this->degree,"Undergraduate");

}

Undergraduate::Undergraduate(const Undergraduate& u):Person(){ this->id=new char[strlen(u.id)+1];

strcpy(this->id,u.id);

this->name=new char[strlen(http://www.77cn.com.cn)+1];

strcpy(this->name,http://www.77cn.com.cn);

this->degree=new char[strlen("Undergraduate")+1];

strcpy(this->degree,"Undergraduate");

}

Undergraduate::~Undergraduate(){

delete[] degree;

}

void Undergraduate::display(){

cout<<"ID: "<<id<<" Name: "<<name<<" Degree: "<<degree<<" Courses to study: ";

Course* c=courses;

while(c!=0){

cout<<c->getName()<<" ";

c=c->getNext();

}

cout<<endl;

}

class JuniorCollegeStudent:public Person{

public:

JuniorCollegeStudent():Person(){degree=new char[strlen("Junior college student")+1];strcpy(this->degree,"Junior college student");}

JuniorCollegeStudent(char i[],char n[]);

JuniorCollegeStudent(const JuniorCollegeStudent& j);

~JuniorCollegeStudent();

void display();

char *getDegree(){return degree;}

private:

char* degree;

};

JuniorCollegeStudent::JuniorCollegeStudent(char i[],char n[]):Person(i,n){ this->degree=new char[strlen("Junior college student")+1];

strcpy(this->degree,"Junior college student");

}

JuniorCollegeStudent::JuniorCollegeStudent(const JuniorCollegeStudent& j){ this->id=new char[strlen(j.id)+1];

strcpy(this->id,j.id);

this->name=new char[strlen(http://www.77cn.com.cn)+1];

strcpy(this->name,http://www.77cn.com.cn);

this->degree=new char[strlen("Junior college student")+1];

strcpy(this->degree,"Junior college student");

}

JuniorCollegeStudent::~JuniorCollegeStudent(){

delete[] degree;

}

void JuniorCollegeStudent::display(){

cout<<"ID: "<<id<<" Name: "<<name<<" Degree: "<<degree<<" Courses to study: ";

Course* c=courses;

while(c!=0){

cout<<c->getName()<<" ";

c=c->getNext();

}

cout<<endl;

}

#include<stdio.h>

#include<stdlib.h>

int N1,N2,kk1,kk2,kk3;

struct couse * head1;

struct student * head2;

struct couse//课程信息结构体

{

int num1;

char name1[20];

int score;

int nelepeo;//课程已选人数

int Melepeo;//课程人数上限

struct couse * next;

};

struct student//学生信息结构体

{

int num2;

char name2[20];

int nelenum[50];//已选课程编号

int nelen;//已选课程数量

struct student * next;

};

void Ms()

{

for(kk1=0;kk1<1100;kk1++)

for(kk2=0;kk2<1200;kk2++)

for(kk3=0;kk3<1200;kk3++);

}

void keyboardc()//录入课程子函数(从键盘录入)

{

struct couse *p1,*p2;

N1=0;

p1=p2=(struct couse*)malloc(sizeof(struct couse));

printf("课程编号\t课程名称\t学分\t课程人数上限\n");

scanf("%d%s%d%d",&p1->num1,p1->name1,&p1->score,&p1->Melepeo);

p1->nelepeo=0;

head1=NULL;

while(p1->num1!=0)

{

N1=N1+1;

if(N1==1)head1=p1;

else p2->next=p1;

p2=p1;

p1=(struct couse * )malloc(sizeof(struct couse));

scanf("%d%s%d%d",&p1->num1,p1->name1,&p1->score,&p1->Melepeo);

p1->nelepeo=0;

}

p2->next=NULL;

}

void filec()//录入键盘子函数(从文件录入)

{

FILE * fp;

char filepath[20];

struct couse *p1,*p2;

N1=0;

printf("输入要读入的文件路径:");

getchar();

gets(filepath);

if((fp=fopen(filepath,"r"))==NULL)

{

printf("找不到%s文件!\n",filepath);

exit(0);

p1=p2=(struct couse*)malloc(sizeof(struct couse));

fscanf(fp,"%d%s%d%d%d",&p1->num1,p1->name1,&p1->score,&p1->nelepeo,&p1->Melepeo); head1=NULL;

while(!feof(fp))

{

N1=N1+1;

if(N1==1)head1=p1;

else p2->next=p1;

p2=p1;

p1=(struct couse * )malloc(sizeof(struct couse));

fscanf(fp,"%d%s%d%d%d",&p1->num1,p1->name1,&p1->score,&p1->nelepeo,&p1->Melepeo); }

p2->next=NULL;

}

void inputc()//录入课程主函数

{

int i;

printf("\t\t\t录入课程信息\n");

printf("\n1.从键盘录入\n");

printf("2.从文件录入\n");

printf("3.返回主菜单\n");

printf("请选择(1~3):\n");

scanf("%d",&i);

switch(i)

{

case(1):keyboardc();break;

case(2):filec();break;

case(3):break;

}

}

void insertc(struct couse *incouse)//课程管理子函数(增加课程)

{

struct couse *p0,*p1,*p2;

p1=head1;

p0=incouse;

if(head1==NULL)

{

head1=p0;

p0->next=NULL;

}

else

while((p0->num1 > p1->num1) && (p1->next!=NULL))

{

p2=p1;

p1=p1->next;

}

if(p0->num1 <= p1->num1)

{

if(head1==p1) head1=p0;

else p2->next=p0;

p0->next=p1;

}

else

{

p1->next=p0;

p0->next=NULL;

}

}

N1=N1+1;

}

void delc(int num1)//课程管理子函数(删除课程)

{

struct couse *p1,*p2;

if(head1==NULL)

{

printf("\n没有课程,无法删除!\n");

goto end;

}

p1=head1;

while(num1!=p1->num1 && p1->next!=NULL)

{

p2=p1;

p1=p1->next;

}

if(num1==p1->num1)

{

if(p1==head1) head1=p1->next;

else p2->next=p1->next;

printf("已删除该编号课程!\n");

N1=N1-1;

}

else printf("无该编号的课程!\n");

end:;

}

void managementc()//课程管理主函数

{

struct couse * incouse;

int i,num1;

printf("\t\t\t课程管理\n");

printf("1.新增课程\n");

printf("2.删除课程\n");

printf("3.返回主菜单\n");

printf("请选择(1~3):\n");

scanf("%d",&i);

switch(i)

{

case(1):

{

incouse=(struct couse *)malloc(sizeof(struct couse));

printf("课程编号\t课程名称\t学分\t课程人数上限\n");

scanf("%d%s%d%d",&incouse->num1,incouse->name1,&incouse->score,&incouse->Melepeo); incouse->nelepeo=0;

insertc(incouse);

break;

}

case(2):

{

printf("请输入要删除课程的编号:\n");

scanf("%d",&num1);

delc(num1);

break;

}

case(3):break;

}

}

void keyboards()//录入学生信息子函数（从键盘录入）

{

int i;

struct student *p1,*p2;

N2=0;

p1=p2=(struct student *)malloc(sizeof(struct student));

printf("学生学号\t学生姓名\n");

scanf("%d%s",&p1->num2,p1->name2);

p1->nelen=0;

for(i=0;i<20;i++) p1->nelenum[i]=0;

head2=NULL;

while(p1->num2!=0)

{

N2=N2+1;

if(N2==1)head2=p1;

else p2->next=p1;

p2=p1;

p1=(struct student * )malloc(sizeof(struct student));

scanf("%d%s",&p1->num2,p1->name2);

p1->nelen=0;

for(i=0;i<20;i++) p1->nelenum[i]=0;

}

p2->next=NULL;

}

void files()//录入学生信息子函数（从文件录入）

{

int i=0;

FILE * fp;

char filepath[20];

struct student *p1,*p2;

N2=0;

printf("输入要读入的文件路径:");

getchar();

gets(filepath);

if((fp=fopen(filepath,"r"))==NULL)

{

printf("找不到%s文件!\n",filepath);

exit(0);

}

p1=p2=(struct student*)malloc(sizeof(struct student));

fread(p1,sizeof(struct student),1,fp);

head2=NULL;

while(!feof(fp))

{

i=0;

N2=N2+1;

if(N2==1)head2=p1;

else p2->next=p1;

p2=p1;

p1=(struct student * )malloc(sizeof(struct student));

fread(p1,sizeof(struct student),1,fp);

}

p2->next=NULL;

}

void inputs()//录入学生信息主函数

{

int i;

printf("\t\t\t录入学生信息\n");

printf("\n1.从键盘录入\n");

printf("2.从文件录入\n");

printf("3.返回主菜单\n");

printf("请选择(1~3):\n");

scanf("%d",&i);

switch(i)

{

case(1):keyboards();break;

case(2):files();break;

case(3):break;

}

}

void inserts(struct student * incouse)//学生信息管理子函数(填加学生信息)

{

struct student *p0,*p1,*p2;

p1=head2;

p0=incouse;

if(head2==NULL)

{

head2=p0;

p0->next=NULL;

}

else

{

while((p0->num2 > p1->num2) && (p1->next!=NULL))

{

p2=p1;

p1=p1->next;

}

if(p0->num2 <= p1->num2)

{

if(head2==p1) head2=p0;

else p2->next=p0;

p0->next=p1;

}

else

{

p1->next=p0;

p0->next=NULL;

}

}

N2=N2+1;

}

void dels(int num2)//学生信息管理子函数（删除学生信息)

{

struct student *p1,*p2;

if(head2==NULL)

{

printf("\n没有该学生信息,无法删除!\n");

goto end;

}

p1=head2;

while(num2!=p1->num2 && p1->next!=NULL)

{

p2=p1;

p1=p1->next;

}

if(num2==p1->num2)

{

if(p1==head2) head2=p1->next;

else p2->next=p1->next;

printf("已删除该学生信息!\n");

N2=N2-1;

}

else printf("无该学号的学生!\n");

end:;

}

void managements()//学生信息管理主函数

{

struct student * incouse;

int i,num2;

printf("\t\t\t学生信息管理\n");

printf("1.新增学生信息\n");

printf("2.删除学生信息\n");

printf("3.返回主菜单\n");

printf("请选择(1~3):\n");

scanf("%d",&i);

switch(i)

{

case(1):

{

incouse=(struct student *)malloc(sizeof(struct student));

incouse->nelen=0;

incouse->nelenum[0]=0;

printf("学生学号\t学生姓名\n");

scanf("%d%s",&incouse->num2,incouse->name2);

inserts(incouse);

break;

}

case(2):

{

printf("请输入要删除学生的学号:\n");

scanf("%d",&num2);

dels(num2);

break;

}

case(3):break;

}

}

void elect(struct student * s)//选课

{

struct couse * p;

int num1,i;

printf("请输入要选课的编号:\n");

scanf("%d",&num1);

for(i=0;s->nelenum[i]!=0;i++);

s->nelenum[i]=num1;

(s->nelen)++;

p=head1;

while(p->num1!=num1) p=p->next;

(p->nelepeo)++;

}

void cheak()//学生选课子函数(查询可选课程)

{

char e;

struct couse * c;

struct student * s;

int num2,i,j=0,t=0;

printf("请输入你的学号:");

scanf("%d",&num2);

s=head2;

while(s->num2!=num2 && s->next!=NULL) s=s->next;

if(s->num2!=num2)

{

printf("不存在你的信息,请进入主菜单录入你的信息!\n");

goto end;

}

c=head1;

printf("你的可选课程编号:\n");

while(c!=NULL)

{

for(t=0,i=0;s->nelenum[i]!=0;i++)

{

if(c->num1==s->nelenum[i]) t=1;

}

if(t==0 && (c->nelepeo!=c->Melepeo))

{

printf("%d\n",c->num1);

j++;

}

c=c->next;

}

if(j==0)

{

printf("你已选完所有课程，无法再多选!\n");

goto end;

}

printf("选课(y/n)?:\n");

getchar();

e=getchar();

i=0;

while(e=='y')

{

elect(s);

printf("继续选课(y/n)?:\n");

getchar();

e=getchar();

}

end:;

}

void back(struct student * p)//退课

{

struct couse * p1;

int num1,i,j;

printf("请输入你要退掉的课程编号:\n");

scanf("%d",&num1);

p1=head1;

while(p1->num1!=num1) p1=p1->next;

for(i=0;p->nelenum[i]!=num1;i++);

for(j=i;p->nelenum[j]!=0;j++) p->nelenum[j]=p->nelenum[j+1];

p->nelenum[--j]=0;

(p1->nelepeo)--;

printf("退课成功!\n");

}

void hcheak()//学生选课子函数（查询已选课程)

{

char c;

struct couse * p0;

struct student * p;

int num2,i,f=0;

printf("请输入学号:\n");

scanf("%d",&num2);

p=head2;

while(p->num2!=num2 && p!=NULL) p=p->next;

if(p==NULL)

{

printf("不存在你的信息,请回主菜单录入信息:\n");

goto end;

}

printf("已选课程编号:\n");

if(p->nelenum[0]==0)

{

printf("你还没选课!\n");

goto end;

}

for(i=0;p->nelenum[i]!=0;i++)

{

printf("%d\n",p->nelenum[i]);

p0=head1;

while(p0->num1!=p->nelenum[i]) p0=p0->next;

f=f+p0->score;

}

printf("总学分:%d\n",f);

printf("是否进行退课(y/n)?");

getchar();

c=getchar();

while(c=='y')

{

back(p);

printf("继续退课(y/n)?");

getchar();

c=getchar();

(p->nelen)--;

}

end:;

}

void elective()//学生选课主函数

{

int i;

printf("\t\t\t学生选课\n");

printf("1.查询可选课程\n");

printf("2.查询已选课程\n");

printf("3.返回主菜单\n");

printf("请输入(1~3):\n");

scanf("%d",&i);

switch(i)

{

case(1):cheak();break;

case(2):hcheak();break;

case(3):break;

}

}

void listc()//输出课程信息

{

struct couse * p;

p=head1;

printf("课程编号 课程名称 学分 课程已选人数 课程人数上限\n");

while(p!=NULL)

{

printf("%-8d%10s%6d%8d%12d\n",p->num1,p->name1,p->score,p->nelepeo,p->Melepeo); p=p->next;

}

}

void lists()//输出学生信息

{

struct student * p;

p=head2;

printf("学生学号 学生姓名 已选课程数量\n");

while(p!=NULL)

{

printf("%-4d %10s %6d\n",p->num2,p->name2,p->nelen);

p=p->next;

}

}

void intoc()//存储课程信息

{

FILE * fp;

struct couse * p;

char filepath[30];

printf("输入课程信息要保存的文件路径:");

getchar();

gets(filepath);

if((fp=fopen(filepath,"w"))==NULL)

{

printf("\n保存失败!");

exit(0);

}

p=head1;

while(p!=NULL)

{

fprintf(fp,"%d %s %d %d %d\n",p->num1,p->name1,p->score,p->nelepeo,p->Melepeo); p=p->next;

}

fclose(fp);

printf("课程信息已保存在%s中!\n",filepath);

}

void intos()//存储学生信息

{

FILE * fp;

struct student * p;

char filepath[30];

printf("输入学生信息要保存的文件路径:");

getchar();

gets(filepath);

if((fp=fopen(filepath,"w"))==NULL)

{

printf("\n保存失败!");

exit(0);

}

p=head2;

while(p!=NULL)

{

fwrite(p,sizeof(struct student),1,fp);

p=p->next;

}

fclose(fp);

printf("学生信息已保存在%s中!\n",filepath);

}

void into()//存储信息

{

int i;

printf("1.存储课程信息\n");

printf("2.存储学生信息\n");

printf("3.返回主菜单\n");

printf("请输入(1~3)\n");

本文来源：https://www.bwwdw.com/article/e1ni.html