C语言大作业学生选课系统,C语言实现学生选课系统

#include

#include

#include

#include

typedef struct curr

{

char name[20]; //课程姓名

int number; //课程序号

char teacher[20]; //课程教师姓名

int time; //课程课时

int classroom; //课程教室

struct curr *next; //链表next

}curr,*pcurr;

typedef struct stu

{

int number; //学生序号

char name[20]; //学生姓名

char sex[20]; //学生性别

struct curr *choices; //学生选课

struct stu *next; //链表next

}stu,*pstu;

pcurr creat_curr(pcurr curr_head); //创建链表，课程信息

pcurr find_curr(pcurr curr_head,int number); //查找链表， 课程信息

pcurr add_curr(pcurr curr_head,pcurr new_curr); //课程信息加入链表

void out_curr(pcurr curr_head); //输出课程信息

pcurr del_curr(pcurr curr_head,pcurr del_point); //删除课程信息

pstu creat_stu(pstu stu_head); //创建链表，学生信息

pstu find_stu(pstu stu_head,int number); //查找链表， 学生信息

pstu add_stu(pstu stu_head,pstu new_stu); //学生信息，加入链表

void out_stu(pstu stu_head); //输出学生信息

pstu del_stu(pstu stu_head,pstu del_point); //删除学生信息

pstu choice_curr(pstu stu_head,int number1,pcurr curr_head); //学生选课信息

void out_choice(pstu stu_head); //输出学生选课信息

void title()

{

printf("\t---------欢迎使用成都信息工程大学--学生选课系统------------\n");

printf("\t--------- ------------\n");

printf("\t--------- 1.输入课程信息 ------------\n");

printf("\t--------- 2.浏览课程信息 ------------\n");

printf("\t--------- 3.删除课程信息 ------------\n");

printf("\t--------- 4.输入学生信息 ------------\n");

printf("\t--------- 5.浏览学生信息 ------------\n");

printf("\t--------- 6.删除学生信息 ------------\n");

printf("\t--------- 7.学生选课 ------------\n");

printf("\t--------- 8.所有学生选课信息 ------------\n");

printf("\t--------- 9.退出程序 ------------\n");

printf("\t--------- ------------\n");

printf("\t--------- 特别鸣谢：网络工程专业刘尚文同学 ------------\n");

}

int main()

{

int a,n=0,i;

int number=0;

int number1=0;

pcurr curr_head=NULL;

pstu stu_head=NULL;

pcurr new_curr=NULL;

pstu new_stu=NULL;

pcurr del_point=NULL;

char choice[20];

do

{

system("cls");

title();

printf("请在1-9中选择:");

scanf("%d",&a);

switch(a){

case 1:

system("cls");

new_curr=creat_curr(curr_head);

curr_head=add_curr(curr_head,new_curr);

break;

case 2:

system("cls");

printf("\t\t--------- 全部课程信息 ------------\n");

printf("\t课程姓名\t课程序号\t课程教师姓名\t课程课时\t课程教室\n");

out_curr(curr_head);

system("pause");

break;

case 3:

system("cls");

printf("\t课程姓名\t课程序号\t课程教师姓名\t课程课时\t课程教室\n");

out_curr(curr_head);

printf("请输入打算删除的课程的序号:\n");

scanf("%d",&number);

curr_head=del_curr(curr_head,find_curr(curr_head,number));

printf("删除成功！\n");

system("pause");

break;

case 4:

system("cls");

new_stu=creat_stu(stu_head);

stu_head=add_stu(stu_head,new_stu);

break;

case 5:

system("cls");

printf("\t\t--------- 全部学生信息 ------------\n");

printf("\t学生姓名\t学生学号\t学生性别\n");

out_stu(stu_head);

system("pause");

break;

case 6:

system("cls");

printf("请输入打算删除的学生的学号:\n");

scanf("%d",&number);

stu_head=del_stu(stu_head,find_stu(stu_head,number));

printf("删除成功！\n");

system("pause");

break;

case 7:

system("cls");

printf("\t学生姓名\t学生学号\t学生性别\n");

out_stu(stu_head);

printf("请输入选课同学学号:");

scanf("%d",&number1);

choice_curr(stu_head,number1,curr_head);

system("pause");

break;

;

case 8:

system("cls");

printf("\t\t\t\t--------- 全部选课信息 ------------\n");

printf("\n");

printf("\t学生姓名\t学生学号\t学生性别\t课程姓名\t课程序号\t课程教师姓名\t课程课时\t课程教室\n");

out_choice(stu_head);

system("pause");

break;

case 9:

return 0;

break;

}

} while(a!=0);

return 0;

}

//创建链表，课程信息

pcurr creat_curr(pcurr curr_head)

{

pcurr new_curr=(pcurr)malloc(sizeof(curr));

printf("\n");

printf("\t\t--------- 输入课程信息 ------------\n");

printf("\n");

printf("请输入课程姓名：");

scanf("%s",new_curr->name);

printf("请输入课程序号：");

scanf("%d",&new_curr->number);

printf("请输入课程教师姓名：");

scanf("%s",new_curr->teacher);

printf("请输入课程课时：");

scanf("%d",&new_curr->time);

printf("请输入课程教室：");

scanf("%d",&new_curr->classroom);

while (find_curr(curr_head,new_curr->number)!=NULL)

{

printf("此序号已经有数据，请重新输入.");

scanf("%d",&new_curr->number);

}

new_curr->next=NULL;

return new_curr;

}

//查找链表

pcurr find_curr(pcurr curr_head,int number)

{

if(curr_head==NULL)

return NULL;

if(curr_head->number==number)

return curr_head;

return find_curr(curr_head->next, number);

}

//课程信息加入链表

pcurr add_curr(pcurr curr_head,pcurr new_curr)

{

if(curr_head==NULL)

return new_curr;

new_curr->next=curr_head;

return new_curr;

}

//输出课程信息

void out_curr(pcurr curr_head)

{

while(curr_head)

{

printf("\t%s\t\t%d\t\t%s\t\t%d\t\t%d\n",curr_head->name,curr_head->number,curr_head->teacher,curr_head->time,curr_head->classroom);

curr_head=curr_head->next;

}

}

//删除课程信息

pcurr del_curr(pcurr curr_head,pcurr del_point)

{

pcurr point;

if(del_point == NULL)

{

printf("没有此序号信息，请重新输入!\n");

return curr_head;

}

point=NULL;

if(del_point == curr_head )

{

point=curr_head->next;

free(curr_head);

return point;

}

point=curr_head;

while(point)

{

if(point->next == del_point)

{

point->next=del_point->next;

free(del_point);

return curr_head;

}

point = point->next;

}

}

//创建链表，学生信息

pstu creat_stu(pstu stu_head)

{

pstu new_stu=(pstu)malloc(sizeof(stu));

printf("\n");

printf("\t\t--------- 输入学生信息 ------------\n");

printf("\n");

printf("请输入学生姓名：");

scanf("%s",new_stu->name);

printf("请输入学生学号：");

scanf("%d",&new_stu->number);

printf("请输入学生性别：");

scanf("%s",new_stu->sex);

while (find_stu(stu_head,new_stu->number)!=NULL)

{

printf("此学号已经有数据，请重新输入.");

scanf("%d",&new_stu->number);

}

new_stu->choices=NULL;

new_stu->next=NULL;

return new_stu;

}

//查找链表

pstu find_stu(pstu stu_head,int number)

{

if(stu_head==NULL)

return NULL;

if(stu_head->number==number)

return stu_head;

return find_stu(stu_head->next, number);

}

//学生信息加入链表

pstu add_stu(pstu stu_head,pstu new_stu)

{

if(stu_head==NULL)

return new_stu;

new_stu->next=stu_head;

return new_stu;

}

//输出学生信息

void out_stu(pstu stu_head)

{

while(stu_head)

{

printf("\t%s\t\t%d\t\t%s\n",stu_head->name,stu_head->number,stu_head->sex);

stu_head=stu_head->next;

}

}

//删除学生信息

pstu del_stu(pstu stu_head,pstu del_point)

{

pstu point;

if(del_point == NULL)

{

printf("没有此学号信息，请重新输入!\n");

return stu_head;

}

point=NULL;

if(del_point == stu_head )

{

point=stu_head->next;

free(stu_head);

return point;

}

point=stu_head;

while(point)

{

if(point->next == del_point)

{

point->next=del_point->next;

free(del_point);

return stu_head;

}

point = point->next;

}

}

//学生选课

pstu choice_curr(pstu stu_head,int number1,pcurr curr_head)

{

int number;

pcurr point=NULL,point1=NULL;

pcurr choice_point=NULL;

pstu stu_point=find_stu(stu_head,number1);

if(stu_point!=NULL)

{

printf("\t课程姓名\t课程序号\t课程教师姓名\t课程课时\t课程教室\n");

out_curr(curr_head);

printf("请输入所选课程学号：");

scanf("%d",&number);

point=find_curr(curr_head,number);

if(point!=NULL)

{

choice_point=(pcurr)malloc(sizeof(curr));

memcpy(choice_point,point,sizeof(curr));

choice_point->next=NULL;

if(stu_point->choices==NULL)

{

stu_point->choices=choice_point;

}

else

{

choice_point->next=stu_point->choices;

stu_point->choices=choice_point;

}

printf("恭喜你！选课成功！\n");

return stu_head;

}

else

{

printf("没有所选课程序号！");

return stu_head;

}

}

else

{

printf("没有所选学生学号！");

return stu_head;

}

}

//输出学生选课信息

void out_choice(pstu stu_head)

{

pcurr point=NULL;

while(stu_head)

{

point=stu_head->choices;

printf("\t%s\t\t%d\t\t%s\n",stu_head->name,stu_head->number,stu_head->sex);

while(point)

{

printf("\t\t\t\t\t\t\t%s\t\t%d\t\t%s\t\t%d\t\t%d\n",point->name,point->number,point->teacher,point->time,point->classroom);

point=point->next;

}

stu_head=stu_head->next;

}

}