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#include <stdio.h>
#include <stdlib.h>
#include <time.h>
#include <string.h>
#include <windows.h>
#include <conio.h>
//建立结构体
struct Student_n //学生的自然信息
{
int iNumber;
char cName[20];
char sex[5];
int old;
char nation[10];
Student_n* pNext;
};
//建立结构体
struct Student_p //学生的选课信息
{
int iNumber;
char cName[20];
int scnumber;
char scname[20];
Student_p* pNext;
};
//建立结构体
struct Student_s //学生的成绩
{
int iNumber;
char cName[20];
int scnumber;
char scname[20];
int sc;
Student_s* pNext;
};
//建立空表头
Student_n* head_n()
{
Student_n* pHead = (Student_n *)malloc(sizeof(Student_n));
pHead->pNext = NULL;
return pHead;
}
int iCount_n; //记节点的个数
//建立链表
void create_n(Student_n* pHead)
{
Student_n* temp = (Student_n *)malloc(sizeof(Student_n)); //建立可移动的表头
Student_n* pNew;
int i = 1;
iCount_n = 0;
printf("开始输入学生基本信息!\n\n");
while(1)
{
pNew = (Student_n *)malloc(sizeof(Student_n));
pNew->pNext = NULL;
printf("输入第%d个人的信息(输入0终止输入):\n", i);
printf("学号:");
scanf("%d", &pNew->iNumber);
if(pNew->iNumber == 0)
{
break;
}
printf("姓名:");
scanf("%s", pNew->cName);
printf("性别:");
scanf("%s", pNew->sex);
printf("年龄:");
scanf("%d", &pNew->old);
printf("民族:");
scanf("%s", pNew->nation);
if(i == 1)
{
pHead->pNext = pNew;
temp = pNew;
}
else
{
temp->pNext = pNew;
temp = temp->pNext;
temp->pNext = NULL;
}
iCount_n++;
i++;
}
free(pNew);
}
//添加基本信息
void insert_n(Student_n* pHead)
{
int j = 1;
int i = iCount_n;
Student_n* ptemp;
Student_n* p, *temp; //可移动的添加链表
Student_n* head = (Student_n *)malloc(sizeof(Student_n));
while(1)
{
temp = (Student_n *)malloc(sizeof(Student_n));
temp->pNext = NULL;
printf("添加第%d个人的信息:(输入0终止输入)\n", i + 1);
printf("学号:");
scanf("%d", &temp->iNumber);
if(temp->iNumber == 0)
{
break;
}
printf("姓名:");
scanf("%s", temp->cName);
printf("性别:");
scanf("%s", temp->sex);
printf("年龄:");
scanf("%d", &temp->old);
printf("民族:");
scanf("%s", temp->nation);
if(j == 1)
{
head = temp;
p = temp;
}
else
{
p->pNext = temp;
p = p->pNext;
p->pNext = NULL;
}
i++;
iCount_n++;
}
free(temp);
ptemp = pHead;
while(ptemp->pNext != NULL)
{
ptemp = ptemp->pNext;
}
ptemp->pNext = head;
}
//删除基本信息
void Delete_n(Student_n* pHead)
{
int n = 0; //输入要删除人的学号
Student_n* p, *temp; //负责移动的指针
Student_n* goal; //要删除的节点
printf("请输入要删除人的学号:");
DeLeTe:
scanf("%d", &n);
p = pHead;
temp = pHead;
goal = pHead;
while(n != goal->iNumber)
{
p = p->pNext;
goal = goal->pNext;
if(goal == NULL)
{
printf("无此人!请输入正确的学号...\n");
goto DeLeTe;
}
}
if(goal->pNext == NULL)
{
while(temp->pNext != goal)
{
temp = temp->pNext;
}
temp->pNext = NULL;
free(goal);
iCount_n--;
}
else
{
p = p->pNext;
while(temp->pNext != goal)
{
temp = temp->pNext;
}
temp->pNext = p;
iCount_n--;
free(goal);
}
}
//更改基本信息
void change_n(Student_n* pHead)
{
int n = 0; //学号
char name[20];
int old;
Student_n* temp; //负责移动
printf("请输入要更改人的学号:");
change:
scanf("%d", &n);
temp = pHead;
while(n != temp->iNumber)
{
temp = temp->pNext;
if(temp == NULL)
{
printf("无此人!请输入正确的学号...\n");
goto change;
}
}
printf("1,更改姓名\n");
printf("2,更改年龄\n");
errorchange:
scanf("%d", &n);
if(n == 1)
{
printf("请输入新的姓名:");
scanf("%s", name);
strcpy(temp->cName, name);
}
else if(n == 2)
{
printf("请输入新的年龄:");
scanf("%d", &old);
temp->old = old;
}
else
{
printf("输入有误!请重新输入...\n");
goto errorchange;
}
}
//存盘
void Fileoutput_n(Student_n* pHead)
{
pHead = pHead->pNext;
Student_n* head; //临时指针负责移动
head = pHead;
FILE* p = fopen("nature.dat", "wb");
if(p == NULL)
{
printf("指针为空\n");
exit(1);
}
while(head != NULL)
{
fwrite(head, sizeof(Student_n), 1, p);
head = head->pNext;
}
fclose(p);
}
//读盘
void Fileinput_n(Student_n* pHead_n)
{
iCount_n = 0;
int i = 1;
Student_n* head;
Student_n* temp = (Student_n *)malloc(sizeof(Student_n));
Student_n pNew;
head = pHead_n;
FILE* p = fopen("nature.dat", "rb");
if(p == NULL)
{
printf("文件为空!\n");
exit(1);
}
while(fread(&pNew, sizeof(Student_n), 1, p) == 1)
{
temp = (Student_n *)malloc(sizeof(Student_n));
*temp = pNew;
head->pNext = temp;
head = head->pNext;
head->pNext = NULL;
iCount_n++;
}
fclose(p);
}
//遍历
void traversal_n(Student_n* pHead)
{
Student_n* temp; //临时指针负责移动
temp = pHead;
int i = 1;
if(pHead->pNext == NULL)
{
printf("链表为空!\n");
exit(1);
}
temp = temp->pNext;
printf("输出%d个人的信息!\n", iCount_n);
while(temp != NULL)
{
printf("输出第%d个人的信息:\n", i);
printf("学号:%d\n", temp->iNumber);
printf("姓名:%s\n", temp->cName);
printf("性别:%s\n", temp->sex);
printf("年龄:%d\n", temp->old);
printf("民族:%s\n", temp->nation);
temp = temp->pNext;
i++;
}
}
int iCount_p;
//建立选课信息的空表头
Student_p* head_p()
{
Student_p* head = (Student_p *)malloc(sizeof(Student_p));
head->pNext = NULL;
return head;
}
//建立选课信息链表
void create_p(Student_p* pHead)
{
int i = 1;
iCount_p = 0;
printf("开始输入学生选课信息\n");
Student_p* head = pHead;
Student_p* pNew;
while(1)
{
pNew = (Student_p *)malloc(sizeof(Student_p));
printf("第%d个人的选课信息(输入0终止输入):\n", i);
printf("学号:");
scanf("%d", &pNew->iNumber);
if(pNew->iNumber == 0)
{
break;
}
printf("姓名:");
scanf("%s", pNew->cName);
printf("课程号:");
scanf("%d", &pNew->scnumber);
printf("课程名:");
scanf("%s", pNew->scname);
head->pNext = pNew;
head = head->pNext;
head->pNext = NULL;
iCount_p++;
i++;
}
}
//添加选课信息
void insert_p(Student_p* pHead)
{
int j = 1;
int i = iCount_p;
Student_p* temp; //负责在原链表上移动
Student_p* p, *pNew; //负责在新的联表上移动
Student_p* head;
printf("开始添加学生选课信息:\n");
while(1)
{
pNew = (Student_p *)malloc(sizeof(Student_p));
printf("添加第%d个人的信息(输入0终止输入):\n", i + 1);
printf("学号:");
scanf("%d", &pNew->iNumber);
if(pNew->iNumber == 0)
{
break;
}
printf("姓名:");
scanf("%s", pNew->cName);
printf("课程号:");
scanf("%d", &pNew->scnumber);
printf("课程名:");
scanf("%s", pNew->scname);
if(j == 1)
{
head = pNew;
p = pNew;
head->pNext = NULL;
}
else
{
head->pNext = pNew;
head = head->pNext;
head->pNext = NULL;
}
j++;
i++;
iCount_p++;
}
free(pNew);
temp = pHead;
while(temp->pNext != NULL)
{
temp = temp->pNext;
}
temp->pNext = p;
}
//删除选课信息
void Delete_p(Student_p* pHead)
{
Student_p* p, *temp, *goal;
int n = 0;
error123:
printf("请输入要删除人的学号:");
scanf("%d", &n);
temp = pHead;
p = pHead;
goal = pHead;
while(n != goal->iNumber)
{
p = p->pNext;
goal = goal->pNext;
if(goal == NULL)
{
printf("无此人!请输入正确的学号...\n");
goto error123;
}
}
if(goal->pNext == NULL)
{
while(temp->pNext != goal)
{
temp = temp->pNext;
}
temp->pNext = NULL;
free(goal);
iCount_p--;
}
else
{
p = p->pNext;
while(temp->pNext != goal)
{
temp = temp->pNext;
}
temp->pNext = p;
free(goal);
iCount_p--;
}
}
//更改选课信息
void change_p(Student_p* pHead)
{
char name[20]; //scname
int number; //scnumber
int n = 0;
Student_p* goal;
goal = pHead;
errorchangepick:
printf("请输入更改人的学号:");
scanf("%d", &n);
while(n != goal->iNumber)
{
goal = goal->pNext;
if(goal == NULL)
{
printf("无此人!请输入正确的学号...\n");
goto errorchangepick;
}
}
printf("1,更改选课信息\n");
printf("2,更改课程号\n");
printf("3,更改课程名\n");
errorchange123:
scanf("%d", &n);
if(n == 1)
{
system("cls");
printf("请输入新课程号:");
scanf("%d", &goal->scnumber);
printf("请输入新课程名:");
scanf("%s", goal->scname);
}
else if(n == 2)
{
system("cls");
printf("请输入新课程号:");
scanf("%d", &goal->scnumber);
}
else if(n == 3)
{
system("cls");
printf("请输入新课程名:");
scanf("%s", goal->cName);
}
else
{
printf("输入有误!请重新输入...\n");
goto errorchange123;
}
}
//遍历————选课信息
void traversal_p(Student_p* pHead)
{
int i = 1;
Student_p* temp = pHead;
if(pHead->pNext == NULL)
{
printf("链表为空!\n");
exit(1);
}
temp = temp->pNext;
printf("输出%d个人的选课信息:\n\n", iCount_p);
while(temp != NULL)
{
printf("输出第%d个人的信息:\n", i);
printf("学号:%d\n", temp->iNumber);
printf("姓名:%s\n", temp->cName);
printf("课程号:%d\n", temp->scnumber);
printf("课程名:%s\n", temp->scname);
temp = temp->pNext;
i++;
}
}
//存盘
void Fileoutput_p(Student_p* pHead)
{
Student_p* head;
FILE* p = fopen("pick", "wb");
head = pHead;
head = head->pNext;
if(p == NULL)
{
printf("指针为空!\n");
exit(1);
}
while(head != NULL)
{
fwrite(head, sizeof(Student_p), 1, p);
head = head->pNext;
}
fclose(p);
}
//读盘
void Fileinput_p(Student_p* pHead)
{
FILE* p = fopen("pick", "rb");
Student_p* temp = (Student_p *)malloc(sizeof(Student_p));
Student_p* head;
Student_p pNew;
head = pHead;
if(p == NULL)
{
printf("文件为空!\n");
exit(1);
}
while(fread(&pNew, sizeof(Student_p), 1, p) == 1)
{
temp = (Student_p *)malloc(sizeof(Student_p));
*temp = pNew;
head->pNext = temp;
head = head->pNext;
head->pNext = NULL;
iCount_p++;
}
fclose(p);
}
int iCount_s;
//建立课程成绩的空表头
Student_s* head_s()
{
Student_s* head = (Student_s *)malloc(sizeof(Student_s));
head->pNext = NULL;
return head;
}
//建立课程成绩链表
void create_s(Student_s* pHead)
{
int i = 1;
iCount_s = 0;
printf("开始输入学生选课信息\n");
Student_s* head = pHead;
Student_s* pNew;
while(1)
{
pNew = (Student_s *)malloc(sizeof(Student_s));
printf("第%d个人的成绩(输入0终止输入):\n", i);
printf("学号:");
scanf("%d", &pNew->iNumber);
if(pNew->iNumber == 0)
{
break;
}
printf("姓名:");
scanf("%s", pNew->cName);
printf("课程号:");
scanf("%d", &pNew->scnumber);
printf("课程名:");
scanf("%s", pNew->scname);
printf("成绩:");
scanf("%d", &pNew->sc);
head->pNext = pNew;
head = head->pNext;
head->pNext = NULL;
iCount_s++;
i++;
}
}
//添加课程成绩
void insert_s(Student_s* pHead)
{
int j = 1;
int i = iCount_s;
Student_s* temp; //负责在原链表上移动
Student_s* p, *pNew; //负责在新的联表上移动
Student_s* head;
printf("开始添加学生成绩:\n");
while(1)
{
pNew = (Student_s *)malloc(sizeof(Student_s));
printf("添加第%d个人的成绩(输入0终止输入):\n", i + 1);
printf("学号:");
scanf("%d", &pNew->iNumber);
if(pNew->iNumber == 0)
{
break;
}
printf("姓名:");
scanf("%s", pNew->cName);
printf("课程号:");
scanf("%d", &pNew->scnumber);
printf("课程名:");
scanf("%s", pNew->scname);
printf("成绩:");
scanf("%d", &pNew->sc);
if(j == 1)
{
head = pNew;
p = pNew;
head->pNext = NULL;
}
else
{
head->pNext = pNew;
head = head->pNext;
head->pNext = NULL;
}
j++;
i++;
iCount_s++;
}
free(pNew);
temp = pHead;
while(temp->pNext != NULL)
{
temp = temp->pNext;
}
temp->pNext = p;
}
//删除成绩
void Delete_s(Student_s* pHead)
{
Student_s* p, *temp, *goal;
int n = 0;
error123123:
printf("请输入要删除人的学号:");
scanf("%d", &n);
temp = pHead;
p = pHead;
goal = pHead;
while(n != goal->iNumber)
{
p = p->pNext;
goal = goal->pNext;
if(goal == NULL)
{
printf("无此人!请输入正确的学号...\n");
goto error123123;
}
}
if(goal->pNext == NULL)
{
while(temp->pNext != goal)
{
temp = temp->pNext;
}
temp->pNext = NULL;
free(goal);
iCount_s--;
}
else
{
p = p->pNext;
while(temp->pNext != goal)
{
temp = temp->pNext;
}
temp->pNext = p;
free(goal);
iCount_s--;
}
}
//更改成绩
void change_s(Student_s* pHead)
{
char name[20]; //scname
int number; //scnumber
int n = 0;
Student_s* goal;
goal = pHead;
errorchangescore:
printf("请输入更改人的学号:");
scanf("%d", &n);
while(n != goal->iNumber)
{
goal = goal->pNext;
if(goal == NULL)
{
printf("无此人!请输入正确的学号...\n");
goto errorchangescore;
}
}
printf("更改课程成绩!\n");
scanf("%d", &goal->sc);
}
//遍历————选课信息
void traversal_s(Student_s* pHead)
{
int i = 1;
Student_s* temp = pHead;
if(pHead->pNext == NULL)
{
printf("链表为空!\n");
exit(1);
}
temp = temp->pNext;
printf("输出%d个人的课程成绩:\n\n", iCount_s);
while(temp != NULL)
{
printf("输出第%d个人的信息:\n", i);
printf("学号:%d\n", temp->iNumber);
printf("姓名:%s\n", temp->cName);
printf("课程号:%d\n", temp->scnumber);
printf("课程名:%s\n", temp->scname);
printf("成绩:%d\n", temp->sc);
temp = temp->pNext;
i++;
}
}
//存盘
void Fileoutput_s(Student_s* pHead)
{
Student_s* head;
FILE* p = fopen("score.dat", "wb");
head = pHead;
head = head->pNext;
if(p == NULL)
{
printf("指针为空!\n");
exit(1);
}
while(head != NULL)
{
fwrite(head, sizeof(Student_s), 1, p);
head = head->pNext;
}
fclose(p);
}
//读盘
void Fileinput_s(Student_s* pHead)
{
FILE* p = fopen("score.dat", "rb");
Student_s* temp = (Student_s *)malloc(sizeof(Student_s));
Student_s* head;
Student_s pNew;
head = pHead;
if(p == NULL)
{
printf("文件为空!\n");
exit(1);
}
while(fread(&pNew, sizeof(Student_s), 1, p) == 1)
{
temp = (Student_s *)malloc(sizeof(Student_s));
*temp = pNew;
head->pNext = temp;
head = head->pNext;
head->pNext = NULL;
iCount_s++;
}
fclose(p);
}
//成绩排名
int pp; //高数排名
void ranking(Student_s* pHead)
{
pp = 1;
int i = 0, j = 0;
int score[50], temp;
int number[50];
char name[50][20], cname[20];
Student_s* head;
head = pHead;
head = head->pNext;
for(i = 0; i < iCount_s; i++)
{
score[i] = head->sc;
number[i] = head->iNumber;
strcpy(name[i], head->cName);
head = head->pNext;
}
for(i = 0; i < iCount_s; i++)
{
for(j = 0; j < iCount_s; j++)
{
if(score[j] < score[j + 1])
{
temp = score[j + 1];
score[j + 1] = score[j];
score[j] = temp;
temp = number[j + 1];
number[j + 1] = number[j];
number[j] = temp;
strcpy(cname, name[j + 1]);
strcpy(name[j + 1], name[j]);
strcpy(name[j], cname);
}
}
}
for(i = 0; i < iCount_s; i++)
{
printf("*******\n");
printf("排名:%d\n", i + 1);
printf("学号:%d\n", number[i]);
printf("姓名:%s\n", name[i]);
printf("分数:%d\n", score[i]);
}
}
//挂科
void Fail(Student_s* pHead)
{
int i = 0;
Student_s* head;
head = pHead;
if(head->pNext == NULL)
{
printf("链表为空!\n");
exit(1);
}
head = head->pNext;
while(head != NULL)
{
if(head->sc < 60)
{
printf("姓名:%s", head->cName);
printf("学号:%d", head->iNumber);
printf("成绩:%d", head->sc);
}
else
i++;
head = head->pNext;
}
if(i == iCount_s)
printf("无挂科的学生 !\n");
}
//按学号查询
void find(Student_s* pHead)
{
int n = 0;
Student_s* head;
head = pHead;
if(head->pNext == NULL)
{
printf("链表为空!\n");
exit(1);
}
find:
printf("请输入要查询的学号:");
scanf("%d", &n);
head = pHead;
head = head->pNext;
while(n != head->iNumber)
{
head = head->pNext;
if(head == NULL)
{
printf("无此人!请重新输入...\n");
goto find;
}
}
printf("姓名:%s\n", head->cName);
printf("学号:%d\n", head->iNumber);
printf("分数:%d\n", head->sc);
}
//主函数
int main()
{
int k = 0; //输入菜单号码
Student_n* pHead_n; //基本信息的表头
Student_p* pHead_p; //选课信息的表头
Student_s* pHead_s;
pHead_n = head_n(); //基本信息的空表头赋值给pHead_n
pHead_p = head_p();
pHead_s = head_s();
Fileinput_n(pHead_n);
Fileinput_p(pHead_p);
Fileinput_s(pHead_s);
printf("请按任意键开始使用!\n");
getch();
while(1)
{
one1:
system("cls");
printf("1,输入信息\n");
printf("2,添加信息\n");
printf("3,删除信息\n");
printf("4,更改信息\n");
printf("5,查询信息\n");
printf("0,退出系统\n");
error:
scanf("%d", &k);
switch(k)
{
case 1:
system("cls");
printf("1,返回到上一页\n");
printf("2,输入基本信息\n");
printf("3,输入选课信息\n");
printf("4,输入课程成绩\n");
scanf("%d", &k);
if(k == 1)
{
goto one1;
}
else if(k == 2)
{
system("cls");
create_n(pHead_n);
printf("1,保存并返回上一页!\n");
printf("2,保存并退出系统\n");
error1:
scanf("%d", &k);
if(k == 1)
{
Fileoutput_n(pHead_n);
goto one1;
}
else if(k == 2)
{
Fileoutput_n(pHead_n);
exit(0);
}
else
{
printf("输入错误!请重新输入...\n");
goto error1;
}
}
else if(k == 3)
{
system("cls");
create_p(pHead_p);
printf("1,保存并返回上一页\n");
printf("2,保存并退出系统\n");
error12:
scanf("%d", &k);
if(k == 1)
{
Fileoutput_p(pHead_p);
goto one1;
}
else if(k == 2)
{
Fileoutput_p(pHead_p);
exit(0);
}
else
{
printf("输入错误!请重新输入...\n");
goto error12;
}
}
else if(k == 4)
{
system("cls");
create_s(pHead_s);
printf("1,保存并返回上一页\n");
printf("2,保存并退出系统\n");
error14:
scanf("%d", &k);
if(k == 1)
{
Fileoutput_s(pHead_s);
goto one1;
}
else if(k == 2)
{
Fileoutput_s(pHead_s);
exit(0);
}
else
{
printf("输入错误!请重新输入...\n");
goto error14;
}
}
break;
case 2:
system("cls");
printf("1,返回上一页\n");
printf("2,添加学生基本信息\n");
printf("3,添加学生选课信息\n");
printf("4,添加学生课程成绩\n");
scanf("%d", &k);
if(k == 1)
{
goto one1;
}
else if(k == 2)
{
system("cls");
insert_n(pHead_n);
printf("1,保存并返回上一页\n"); //goto one1
printf("0,保存并退出系统\n");
error22:
scanf("%d", &k);
if(k == 1)
{
Fileoutput_n(pHead_n);
goto one1;
}
else if(k == 0)
{
Fileoutput_n(pHead_n);
exit(0);
}
else
{
printf("输入有误!请重新输入...\n");
goto error22;
}
}
else if(k == 3)
{
system("cls");
insert_p(pHead_p);
printf("1,保存并返回上一页\n"); //goto one1
printf("0,保存并退出系统\n");
error23:
scanf("%d", &k);
if(k == 1)
{
Fileoutput_p(pHead_p);
goto one1;
}
else if(k == 0)
{
Fileoutput_p(pHead_p);
exit(0);
}
else
{
printf("输入有误!请重新输入...\n");
goto error23;
}
}
else if(k == 4)
{
system("cls");
insert_s(pHead_s);
printf("1,保存并返回上一页\n"); //goto one1
printf("0,保存并退出系统\n");
error24:
scanf("%d", &k);
if(k == 1)
{
Fileoutput_s(pHead_s);
goto one1;
}
else if(k == 0)
{
Fileoutput_s(pHead_s);
exit(0);
}
else
{
printf("输入有误!请重新输入...\n");
goto error24;
}
}
break;
case 3:
system("cls");
printf("1,返回上一页\n");
printf("2,删除学生基本信息\n");
printf("3,删除学生选课信息\n");
printf("4,删除学生课程成绩\n");
scanf("%d", &k);
if(k == 1)
{
goto one1;
}
else if(k == 2)
{
Delete_n(pHead_n);
printf("删除中...\n");
Sleep(2000);
system("cls");
printf("1,保存并返回上一页\n");
printf("0,保存并退出系统\n");
error32:
scanf("%d", &k);
if(k == 1)
{
Fileoutput_n(pHead_n);
goto one1;
}
else if(k == 0)
{
Fileoutput_n(pHead_n);
exit(0);
}
else
{
printf("输入有误!请重新输入...\n");
goto error32;
}
}
else if(k == 3)
{
Delete_p(pHead_p);
printf("删除中...\n");
Sleep(2000);
system("cls");
printf("1,保存并返回上一页\n");
printf("0,保存并退出系统\n");
error33:
scanf("%d", &k);
if(k == 1)
{
Fileoutput_p(pHead_p);
goto one1;
}
else if(k == 0)
{
Fileoutput_p(pHead_p);
exit(0);
}
else
{
printf("输入有误!请重新输入...\n");
goto error33;
}
}
else if(k == 4)
{
Delete_s(pHead_s);
printf("删除中...\n");
Sleep(2000);
system("cls");
printf("1,保存并返回上一页\n");
printf("0,保存并退出系统\n");
error34:
scanf("%d", &k);
if(k == 1)
{
Fileoutput_s(pHead_s);
goto one1;
}
else if(k == 0)
{
Fileoutput_s(pHead_s);
exit(0);
}
else
{
printf("输入有误!请重新输入...\n");
goto error34;
}
}
break;
case 4:
system("cls");
printf("1,返回上一页\n");
printf("2,更改学生基本信息\n");
printf("3,更改学生选课信息\n");
printf("4,更改学生课程成绩\n");
scanf("%d", &k);
if(k == 1)
{
goto one1;
}
else if(k == 2)
{
system("cls");
change_n(pHead_n);
printf("1,保存并返回上一页\n");
printf("0,保存并退出系统\n");
error42:
scanf("%d", &k);
if(k == 1)
{
Fileoutput_n(pHead_n);
goto one1;
}
else if(k == 0)
{
Fileoutput_n(pHead_n);
exit(0);
}
else
{
printf("输入有误!请重新输入...\n");
goto error42;
}
}
else if(k == 3)
{
system("cls");
change_p(pHead_p);
printf("1,保存并返回上一页\n");
printf("0,保存并退出系统\n");
error43:
scanf("%d", &k);
if(k == 1)
{
Fileoutput_p(pHead_p);
goto one1;
}
else if(k == 0)
{
Fileoutput_p(pHead_p);
exit(0);
}
else
{
printf("输入有误!请重新输入...\n");
goto error43;
}
}
else if(k == 4)
{
system("cls");
change_s(pHead_s);
printf("1,保存并返回上一页\n");
printf("0,保存并退出系统\n");
error44:
scanf("%d", &k);
if(k == 1)
{
Fileoutput_s(pHead_s);
goto one1;
}
else if(k == 0)
{
Fileoutput_s(pHead_s);
exit(0);
}
else
{
printf("输入有误!请重新输入...\n");
goto error44;
}
}
break;
case 5:
five1:
system("cls");
printf("1,返回上一页\n");
printf("2,查询学生基本信息\n");
printf("3,查询学生选课信息\n");
printf("4,查询学生成绩信息\n");
printf("5,排名\n");
printf("6,查询挂科名单\n");
printf("7,按学号查询成绩\n");
printf("0,退出系统\n");
error51:
scanf("%d", &k);
if(k == 1)
{
goto one1;
}
else if(k == 2)
{
system("cls");
traversal_n(pHead_n);
printf("1,返回上一页\n");
printf("0,退出系统\n");
error52:
scanf("%d", &k);
if(k == 1)
{
goto five1;
}
else if(k == 0)
{
exit(0);
}
else
{
printf("输入有误!请重新输入...\n");
Sleep(2000);
goto error52;
}
}
else if(k == 3)
{
system("cls");
traversal_p(pHead_p);
printf("1,返回上一页\n");
printf("0,退出系统\n");
error53:
scanf("%d", &k);
if(k == 1)
{
goto five1;
}
else if(k == 0)
{
exit(0);
}
else
{
printf("输入有误!请重新输入...\n");
Sleep(2000);
goto error53;
}
}
else if(k == 4)
{
system("cls");
traversal_s(pHead_s);
printf("1,返回上一页\n");
printf("0,退出系统\n");
error54:
scanf("%d", &k);
if(k == 1)
{
goto five1;
}
else if(k == 0)
{
exit(0);
}
else
{
printf("输入有误!请重新输入...\n");
Sleep(2000);
goto error54;
}
}
else if(k == 5)
{
system("cls");
ranking(pHead_s);
printf("请按任意键继续\n");
getch();
system("cls");
printf("1,返回上一页\n");
printf("0,退出系统\n");
error55:
scanf("%d", &k);
if(k == 1)
{
goto five1;
}
else if(k == 0)
{
exit(0);
}
else
{
printf("输入有误!请重新输入...\n");
Sleep(2000);
goto error55;
}
}
else if(k == 6)
{
system("cls");
Fail(pHead_s);
printf("请按任意键继续\n");
getch();
system("cls");
printf("1,返回上一页\n");
printf("0,退出系统\n");
error56:
scanf("%d", &k);
if(k == 1)
{
goto five1;
}
else if(k == 0)
{
exit(0);
}
else
{
printf("输入有误!请重新输入...\n");
Sleep(2000);
goto error56;
}
}
else if(k == 7)
{
system("cls");
find(pHead_s);
printf("请按任意键继续\n");
getch();
system("cls");
printf("1,返回上一页\n");
printf("0,退出系统\n");
error57:
scanf("%d", &k);
if(k == 1)
{
goto five1;
}
else if(k == 0)
{
exit(0);
}
else
{
printf("输入有误!请重新输入...\n");
Sleep(2000);
goto error57;
}
}
else if(k == 0)
{
exit(0);
}
else
{
printf("输入有误!请重新输入...\n");
goto error51;
}
break;
case 0:
exit(0);
break;
defalut:
printf("输入有误!请重新输入...\n");
goto error;
}
}
return 0;
}