下面是我自己用写的学生信息管理系统，为了增加数据的利用率，分为学生端和教师端，同时实现账号密码登录，以文件的形式将其存入。
代码如下
```c
#include <stdio.h>
#include <string.h>
#include <string>
#include<Windows.h>
#define USER "TOM" // 事先定义用户名，用于登录页面，验证身份。
#define PW "123456789" // 事先定义密码 ，作用同上。
void Level_menu();//主菜单的声明--选择学生端还是老师端。
void Level_2_menu(); //二级菜单——具体功能分化
void Student_add_Level_3_menu();// 增添学生信息菜单功能分化
void Student_Insert(); //添加单个学生信息
void Student_Insert1(); /*为上面批量输入设置的函数，其代码与上面的
单个输入相似，删减了一部分*/
void Student_Tongji_menu();//统计菜单部分
void Student_Tongji_menu2();//统计二级菜单
void Student_Tongji_menu3();//统计
void IO_ReadInfo();/*将学生信息从文件（student database.txt）中读出*/
void IO_WriteInfo();/*将学生信息写入文件（Database.txt）*/
void student_Delete_menu(); /*删除学生信息菜单*/
void student_menu1();/*学生查询课程信息菜单*/
void student_Kecheng_menu2();
void Student_From_high_to_low1(); /*按综合测评从高到低排序*/
void jiangxue_menu();/*奖学金评定办法*/
void Student_Display2();/*显示学生信息2在奖学金评定时使用*/
/*定义学生结构体*/
struct Student
{
char ID[20]; //学号
char Name[20]; //姓名
char sushe[6]; //宿舍房间号
float mathA1; //高等数学成绩
float EnglishA1; //大学英语成绩
float software; //软件技术导论
float china_history;//中国近代史纲要
float junshi; //军事教育
float xinli; //心理健康辅导
float sports; //体育*/
float C_Mark; //C语言程学设计成绩
float pingjun; //总学分
float Banzhuren; //班主任评分
float Cepingfen; //测评分
};
/*声明学生数组及学生数量*/
struct Student students[1000];
int num=0;
int Num;
/*通过学号返回数组下标*/
int Student_SearchByIndex(char id[])
{
int i;
for (i=0;i<num;i++)
{
if (strcmp(students[i].ID,id)==0)
{
return i;
}
}
return -1;
}
/*通过姓名返回数组下标*/
int Student_SearchByName(char name[])
{
int i;
for (i=0;i<num;i++)
{
if (strcmp(students[i].Name,name)==0)
{
return i;
}
}
return -1;
}
/*通过宿舍成员返回数组下标*/
void Student_SearchBySushe()
{
system("cls");
system("color f0");
int i;
char Sushe[6] ;
printf("请输入你想要查询的宿舍房间号： ");
scanf("%s",&Sushe);
printf("%10s%10s%8s%8s%8s%8s%8s%8s%8s%8s%8s%8s%8s%8s\n","学号","姓名","宿舍号","高等数学","大学英语","软件技术导论","中国近代史","军事教育","心理健康教育","大学体育","C语言成绩","总学分","班主任评分","测评分");
printf("------------------------------------------------------------------------------------------------------------------------\n");
for (i=0;i<num;i++)
{
if (strcmp(students[i].sushe,Sushe)==0)
{
printf("%10s%10s%5s %8.2f %8.2f %8.2f %8.2f %8.2f %8.2f %8.2f %8.2f %8.2f %8.2f %8.2f\n",students[i].ID,students[i].Name,students[i].sushe,students[i].mathA1,students[i].EnglishA1,students[i].software,students[i].china_history,students[i].junshi,students[i].xinli,students[i].sports,students[i].C_Mark,students[i].pingjun,students[i].Banzhuren,students[i].Cepingfen);
}
}
printf("数据加载完毕！");
Student_Tongji_menu2();
}
/*显示单条学生记录*/
void Student_DisplaySingle(int index)
{
printf("%10s%10s%8s%8s%8s%8s%8s%8s%8s%8s%8s%8s\n","学号","姓名","宿舍号","高等数学","大学英语","软件技术导论","中国近代史","军事教育","心理健康教育","大学体育","C语言成绩","品行分");
printf("------------------------------------------------------------------------------------------------------------------------\n");
printf("%10s%10s%5s %8.2f %8.2f %8.2f %8.2f %8.2f %8.2f %8.2f %8.2f %8.2f\n",students[index].ID,students[index].Name,students[index].sushe,students[index].mathA1,students[index].EnglishA1,students[index].software,students[index].china_history,students[index].junshi,students[index].xinli,students[index].sports,students[index].C_Mark,students[index].pingjun);
}
/*增加单条学生记录*/
void Student_Insert()
{
system("cls");
system("color f0");
float a1,a2,a3,a4,a5,a6,a7,a8;
float j=0;
while(1)
{
printf("请输入学号:");
scanf("%s",&students[num].ID);
getchar();
printf("请输入姓名:");
scanf("%s",&students[num].Name);
getchar();
printf("请输入宿舍号:");
scanf("%s",&students[num].sushe);
getchar();
printf("请输入高等数学成绩:");
scanf("%f",&students[num].mathA1);
getchar();
if (59<students[num].mathA1 && students[num].mathA1<100)
a8= 1.5;
else
a8=0;
printf("请输入大学英语成绩:");
scanf("%f",&students[num].EnglishA1);
getchar();
if (59<students[num].EnglishA1 && students[num].EnglishA1<100)
a1= 2;
else
a1=0;
printf("请输入软件技术导论成绩:");
scanf("%f",&students[num].software);
getchar();
if (59<students[num].software && students[num].software<100)
a2= 1.5;
else
a2=0;
printf("请输入中国近代史纲要成绩:");
scanf("%f",&students[num].china_history);
getchar();
if (59<students[num].china_history && students[num].china_history<100)
a3= 2.5;
else
a3=0;
printf("请输入军事教育:");
scanf("%f",&students[num].junshi);
getchar();
if (59<students[num].junshi && students[num].junshi<100)
a4= 2;
else
{
a4=0;
}
printf("请输入心理健康教育成绩:");
scanf("%f",&students[num].xinli);
getchar();
if (59<students[num].xinli && students[num].xinli<100)
a5= 1.5;
else
a5=0;
printf("请输入体育成绩:");
scanf("%f",&students[num].sports);
getchar();
if (59<students[num].sports && students[num].sports<100)
a6= 2;
else
a6=0;
printf("请输入C语言成绩:");
scanf("%f",&students[num].C_Mark);
getchar();
if (59<students[num].C_Mark && students[num].C_Mark<100)
a7= 3.5;
else
a7=0;
printf("请输入班主任评分:");
scanf("%f",&students[num].Banzhuren);
getchar();
students[num].pingjun=a1+a2+a3+a4+a5+a6+a7+a8; //总学分
j=(students[num].pingjun*0.4)+(students[num].Banzhuren*0.6);
students[num].Cepingfen=j;
num++;
printf("是否继续?(Y/N)，继续请按任意键，否则输入N:");
if (getchar()=='N')
{
Num=num;
break;
}
}
}
/*批量添加学生记录*/
void Student_many1()
{
{
system("cls");
system("color f0");
int i,j;
printf("请输入你将要添加的人员数： ");
scanf("%d",&j);
for(i=0;i<j;i++)
{
Student_Insert1();
}
printf("成员添加完毕，是否跳转至上一级菜单？\n");
printf("是？，请按任意键，确认输入: \n");
if (getchar()=='Y')
{
Student_add_Level_3_menu();
}
}
}
/*为上面批量输入设置的函数，其代码与上面的
单个输入相似，删减了一部分*/
void Student_Insert1()
{
{
printf("请输入学号:");
scanf("%s",&students[num].ID);
getchar();
printf("请输入姓名:");
scanf("%s",&students[num].Name);
getchar();
printf("请输入宿舍号:");
scanf("%s",&students[num].sushe);
getchar();
printf("请输入高等数学成绩:");
scanf("%f",&students[num].mathA1);
getchar();
printf("请输入大学英语成绩:");
scanf("%f",&students[num].EnglishA1);
getchar();
printf("请输入软件技术导论成绩:");
scanf("%f",&students[num].software);
getchar();
printf("请输入中国近代史纲要成绩:");
scanf("%f",&students[num].china_history);
getchar();
printf("请输入军事教育:");
scanf("%f",&students[num].junshi);
getchar();
printf("请输入心理健康教育成绩:");
scanf("%f",&students[num].xinli);
getchar();
printf("请输入体育成绩:");
scanf("%f",&students[num].sports);
getchar();
printf("请输入C语言成绩:");
scanf("%f",&students[num].C_Mark);
getchar();
printf("请输入班主任评分:");
scanf("%f",&students[num].Banzhuren);
getchar();
if (54<students[num].C_Mark && students[num].C_Mark< 60) //把55~59分之间的成绩都加上5分
{
students[num].C_Mark += 5;
}
num++;
}
}
/*修改学生信息*/
void Student_Modify()
{
system("cls");
system("color f0");
float a1,a2,a3,a4,a5,a6,a7,a8;
float j=0;
while(1)
{
char id[20];
int index;
printf("请输入要修改的学生的学号:");
scanf("%s",&id);
getchar();
index=Student_SearchByIndex(id);
if (index==-1)
{
printf("该学生不存在!\n");
}
else
{
printf("你要修改的学生信息为:\n");
Student_DisplaySingle(index);
printf("-- 请输入新值--\n");
/*printf("请输入学号:");
scanf("%s",&students[index].ID);
getchar();
printf("请输入姓名:");
scanf("%s",&students[index].Name);
getchar();
printf("请输入宿舍号:");
scanf("%s",&students[index].sushe);
getchar();
printf("请输入高等数学成绩:");
scanf("%f",&students[index].mathA1);
getchar();
printf("请输入大学英语成绩:");
scanf("%f",&students[index].EnglishA1);
getchar();
printf("请输入软件技术导论成绩:");
scanf("%f",&students[index].software);
getchar();
printf("请输入中国近代史纲要成绩:");
scanf("%f",&students[index].china_history);
getchar();
printf("请输入军事教育:");
scanf("%f",&students[index].junshi);
getchar();
printf("请输入心理健康教育成绩:");
scanf("%f",&students[index].xinli);
getchar();
printf("请输入体育成绩:");
scanf("%f",&students[index].sports);
getchar();
printf("请输入C语言成绩:");
scanf("%f",&students[index].C_Mark);
getchar();
printf("请输入班主任评分:");
scanf("%f",&students[num].Banzhuren);
getchar();*/
printf("请输入学号:");
scanf("%s",&students[index].ID);
getchar();
printf("请输入姓名:");
scanf("%s",&students[index].Name);
getchar();
printf("请输入宿舍号:");
scanf("%s",&students[index].sushe);
getchar();
printf("请输入高等数学成绩:");
scanf("%f",&students[index].mathA1);
getchar();
if (59<students[index].mathA1 && students[index].mathA1<100)
a8= 1.5;
else
a8=0;
printf("请输入大学英语成绩:");
scanf("%f",&students[index].EnglishA1);
getchar();
if (59<students[index].EnglishA1 && students[index].EnglishA1<100)
a1= 2;
else
a1=0;
printf("请输入软件技术导论成绩:");
scanf("%f",&students[index].software);
getchar();
if (59<students[index].software && students[index].software<100)
a2= 1.5;
else
a2=0;
printf("请输入中国近代史纲要成绩:");
scanf("%f",&students[index].china_history);
getchar();
if (59<students[index].china_history && students[index].china_history<100)
a3= 2.5;
else
a3=0;
printf("请输入军事教育:");
scanf("%f",&students[index].junshi);
getchar();
if (59<students[index].junshi && students[index].junshi<100)
a4= 2;
else
{
a4=0;
}
printf("请输入心理健康教育成绩:");
scanf("%f",&students[index].xinli);
getchar();
if (59<students[index].xinli && students[index].xinli<100)
a5= 1.5;
else
a5=0;
printf("请输入体育成绩:");
scanf("%f",&students[index].sports);
getchar();
if (59<students[index].sports && students[index].sports<100)
a6= 2;
else
a6=0;
printf("请输入C语言成绩:");
scanf("%f",&students[index].C_Mark);
getchar();
if (59<students[index].C_Mark && students[index].C_Mark<100)
a7= 3.5;
else
a7=0;
printf("请输入班主任评分:");
scanf("%f",&students[index].Banzhuren);
getchar();
students[index].pingjun=a1+a2+a3+a4+a5+a6+a7+a8; //总学分
j=(students[index].pingjun*0.4)+(students[index].Banzhuren*0.6);
students[index].Cepingfen=j;
}
printf("是否继续?(Y/N)，继续请按任意键，否则输入N:");
if (getchar()=='N')
{
break;
}
}
}
/*按学号删除学生信息*/
void Student_Delete()
{
system("cls");
system("color f0");
IO_ReadInfo();
int i;
while(1)
{
char id[20];
int index;
printf("请输入要删除的学生的学号:");
scanf("%s",&id);
getchar();
index=Student_SearchByIndex(id);
if (index==-1)
{
printf("学生不存在!\n");
}
else
{
printf("你要删除的学生信息为:\n");
Student_DisplaySingle(index);
printf("%d",index);
printf("%d",num);
{
for (i=index;i<num-1;i++)
{
students[i]=students[i+1]; //把后边的对象都向前移动
}
num--;
}
printf("已删除\n");
IO_WriteInfo();
}
printf("是否继续删除?(Y/N)，继续请按任意键，否则输入N:");
if (getchar()=='N')
{
break;
}
}
}
/*按姓名删除学生信息*/
void Student_Delete_1()
{
system("cls");
system("color f0");
IO_ReadInfo();
int i;
while(1)
{
char name[20];
int index;
printf("请输入要删除的学生的姓名: ");
scanf("%s",&name);
getchar();
index=Student_SearchByName(name);
if (index==-1)
{
printf("学生不存在!\n");
}
else
{
printf("你要删除的学生信息为:\n");
Student_DisplaySingle(index);
{
for (i=index;i<num-1;i++)
{
students[i]=students[i+1]; //把后边的对象都向前移动
}
num--;
}
printf("已删除\n");
IO_WriteInfo();
}
printf("是否继续删除?(Y/N)，继续请按任意键，否则输入N:");
if (getchar()=='N')
{
break;
}
}
}
/*按姓名查询*/
void Student_Select_1()
{
while(1)
{
char name[20];
int index;
printf("请输入要查询的学生的姓名:");
scanf("%s",&name);
getchar();
index=Student_SearchByName(name);
if (index==-1)
{
printf("学生不存在!\n");
}
else
{
printf("你要查询的学生信息为:\n");
Student_DisplaySingle(index);
}
printf("是否继续?(Y/N)，继续请按任意键，否则输入N:");
if (getchar()=='N')
{
break;
}
}
}
/*按学号查找*/
void Student_Select_2()
{
while(1)
{
char ID[20];
int index;
system("cls");
system("color f0");
printf("请输入要查询的学生的学号:");
scanf("%s",&ID);
getchar();
index=Student_SearchByIndex(ID);
if (index==-1)
{
printf("学生不存在!\n");
}
else
{
printf("你要查询的学生信息为:\n");
Student_DisplaySingle(index);
}
printf("是否继续?(Y/N)，继续请按任意键，否则输入N:");
if (getchar()=='N')
{
break;
}
}
}
void Student_Search_menu()
{
int choice;
while(1)
{
system("cls");
system("color f0");
printf("\t\t\t\t\t\t1. 按姓名查询学生记录\n");
printf("\t\t\t\t\t\t2. 按学号查询学生记录\n");
printf("\t\t\t\t\t\t3. 返回上一级菜单\n");
printf("\t\t\t\t\t\t4. 返回主菜单\n");
printf("\t\t\t\t\t\t请选择(1-4):");
scanf("%d",&choice);
getchar();
switch(choice)
{
case 1:Student_Select_1();
break;
case 2:Student_Select_2();
break;
case 3:Level_2_menu();
break;
case 4:Level_menu();
break;
}
}
}
/*按C语言成绩从高到低排序*/
void Student_From_high_to_low()
{
int i,j;
struct Student tmp;
for (i=0;i<num;i++)
{
for (j=1;j<num-i;j++)
{
if (students[j-1].C_Mark<students[j].C_Mark)
{
tmp=students[j-1];
students[j-1]=students[j];
students[j]=tmp;
}
}
}
}
/*按C语言成绩从低到高排序*/
void Student_From_low_to_high()
{
int i,j;
struct Student tmp;
for (i=0;i<num;i++)
{
for (j=1;j<num-i;j++)
{
if (students[j-1].C_Mark>students[j].C_Mark)
{
tmp=students[j-1];
students[j-1]=students[j];
students[j]=tmp;
}
}
}
}
/*按综合测评从高到低排序*/
void Student_From_high_to_low1()
{
int i,j,k;
struct Student tmp;
for (i=0;i<num;i++)
{
for (j=1;j<num-i;j++)
{
if (students[j-1].Cepingfen<students[j].Cepingfen)
{
tmp=students[j-1];
students[j-1]=students[j];
students[j]=tmp;
}
}
}
/*system("cls");
system("color f0");
while(1)
{
int k;
printf("%10s%10s %8s%8s%8s%8s%8s%8s%8s%8s%8s%8s%8s%8s\n","学号","姓名","宿舍号"," 高等数学","大学英语","软件技术导论","中国近代史","军事教育","心理健康教育","大学体育","C语言成绩","品行分","班主任评分","测评分");
printf("-------------------------------------------------------------------------------------------------------------------------------------------------------------------------\n");
for (k=0;k<num;k++)
{
if(59<students[k].mathA1&&students[k].mathA1<101&&59<students[k].EnglishA1&&students[k].EnglishA1<101&&59<students[k].software&&students[k].software<101&&59<students[k].china_history&&students[k].china_history<101&&59<students[k].junshi&&students[k].junshi<101&&59<students[k].xinli&&students[k].xinli<101&&59<students[k].sports&&students[k].sports<101&&59<students[k].C_Mark&&students[k].C_Mark<101);
{
printf("%10s%10s %8s %8.2f %8.2f %8.2f %8.2f %8.2f %8.2f %8.2f %8.2f %8.2f %8.2f %8.2f\n",students[k].ID,students[k].Name,students[k].sushe,students[k].mathA1,students[k].EnglishA1,students[k].software,students[k].china_history,students[k].junshi,students[k].xinli,students[k].sports,students[k].C_Mark,students[k].pingjun,students[k].Banzhuren,students[k].Cepingfen);
}
}
printf("数据加载完毕！");
jiangxue_menu();
Student_Tongji_menu3();
} */
}
/*奖学金评定办法*/
void jiangxue_menu()
{
float i=0,j=0,k=0;
int a,b,c;
i=num*0.1;
j=num*0.15;
k=num*0.2;
a=(int)i;
b=(int)j;
c=(int)k;
printf("一等奖获得人数为：%d\n",a);
printf("二等奖获奖人数为：%d\n",b);
printf("三等奖获奖人数为：%d\n",c);
}
//对奖学金及格的人员筛选出来
void jiangxue()
{
system("cls");
system("color f0");
while(1)
{
int k;
printf("%10s%10s %8s%8s%8s%8s%8s%8s%8s%8s%8s%8s%8s%8s\n","学号","姓名","宿舍号"," 高等数学","大学英语","软件技术导论","中国近代史","军事教育","心理健康教育","大学体育","C语言成绩","品行分","班主任评分","测评分");
printf("-------------------------------------------------------------------------------------------------------------------------------------------------------------------------\n");
for (k=0;k<num;k++)
{
if(59<students[k].mathA1&&students[k].mathA1<101&&59<students[k].EnglishA1&&students[k].EnglishA1<101&&59<students[k].software&&students[k].software<101&&59<students[k].china_history&&students[k].china_history<101&&59<students[k].junshi&&students[k].junshi<101&&59<students[k].xinli&&students[k].xinli<101&&59<students[k].sports&&students[k].sports<101&&59<students[k].C_Mark&&students[k].C_Mark<101);
{
printf("%10s%10s %8s %8.2f %8.2f %8.2f %8.2f %8.2f %8.2f %8.2f %8.2f %8.2f %8.2f %8.2f\n",students[k].ID,students[k].Name,students[k].sushe,students[k].mathA1,students[k].EnglishA1,students[k].software,students[k].china_history,students[k].junshi,students[k].xinli,students[k].sports,students[k].C_Mark,students[k].pingjun,students[k].Banzhuren,students[k].Cepingfen);
}
}
printf("数据加载完毕！");
jiangxue_menu();
Student_Tongji_menu3();
}
}
/*显示学生信息*/
void Student_Display()
{
system("cls");
system("color f0");
while(1)
{
int i;
printf("%10s%10s %8s%8s%8s%8s%8s%8s%8s%8s%8s%8s\n","学号","姓名","宿舍号"," 高等数学","大学英语","软件技术导论","中国近代史","军事教育","心理健康教育","大学体育","C语言成绩","品行分");
printf("-------------------------------------------------------------------------------------------------------------------------------------------------------------------------\n");
for (i=0;i<num;i++)
{
printf("%10s%10s %8s %8.2f %8.2f %8.2f %8.2f %8.2f %8.2f %8.2f %8.2f %8.2f\n",students[i].ID,students[i].Name,students[i].sushe,students[i].mathA1,students[i].EnglishA1,students[i].software,students[i].china_history,students[i].junshi,students[i].xinli,students[i].sports,students[i].C_Mark,students[i].pingjun);
}
printf("是否继续?(Y/N)，继续请按任意键，否则输入N:");
if (getchar()=='N')
{
break;
}
}
}
/*显示学生信息1*/
void Student_Display1()
{
system("cls");
system("color f0");
while(1)
{
int i;
printf("%10s%10s %8s%8s%8s%8s%8s%8s%8s%8s%8s%8s%8s%8s\n","学号","姓名","宿舍号"," 高等数学","大学英语","软件技术导论","中国近代史","军事教育","心理健康教育","大学体育","C语言成绩","品行分","班主任评分","测评分");
printf("-------------------------------------------------------------------------------------------------------------------------------------------------------------------------\n");
for (i=0;i<num;i++)
{
printf("%10s%10s %8s %8.2f %8.2f %8.2f %8.2f %8.2f %8.2f %8.2f %8.2f %8.2f %8.2f %8.2f\n",students[i].ID,students[i].Name,students[i].sushe,students[i].mathA1,students[i].EnglishA1,students[i].software,students[i].china_history,students[i].junshi,students[i].xinli,students[i].sports,students[i].C_Mark,students[i].pingjun,students[i].Banzhuren,students[i].Cepingfen);
}
printf("数据加载完毕！");
Student_Tongji_menu3();
}
}
/*显示学生信息2在奖学金评定时使用*/
void Student_Display2()
{
system("cls");
system("color f0");
while(1)
{
int i;
printf("%10s%10s %8s%8s%8s%8s%8s%8s%8s%8s%8s%8s%8s%8s\n","学号","姓名","宿舍号"," 高等数学","大学英语","软件技术导论","中国近代史","军事教育","心理健康教育","大学体育","C语言成绩","品行分","班主任评分","测评分");
printf("-------------------------------------------------------------------------------------------------------------------------------------------------------------------------\n");
for (i=0;i<num;i++)
{
printf("%10s%10s %8s %8.2f %8.2f %8.2f %8.2f %8.2f %8.2f %8.2f %8.2f %8.2f %8.2f %8.2f\n",students[i].ID,students[i].Name,students[i].sushe,students[i].mathA1,students[i].EnglishA1,students[i].software,students[i].china_history,students[i].junshi,students[i].xinli,students[i].sports,students[i].C_Mark,students[i].pingjun,students[i].Banzhuren,students[i].Cepingfen);
}
printf("数据加载完毕！");
jiangxue_menu();
Student_Tongji_menu3();
}
}
/*将学生信息从文件（student database.txt）中读出*/
void IO_ReadInfo()
{
FILE *fp;
int i;
if ((fp=fopen("student database.txt","rb"))==NULL)
{
printf("不能打开文件!\n");
return;
}
if (fread(&num,sizeof(int),1,fp)!=1)
{
num=-1;
}
else
{
for(i=0;i<num;i++)
{
fread(&students[i],sizeof(struct Student),1,fp);
}
}
fclose(fp);
}
/*将学生信息写入文件（Database.txt）*/
void IO_WriteInfo()
{
FILE *fp;
int i;
if ((fp=fopen("student database.txt","wb"))==NULL)
{
printf("不能打开文件!\n");
return;
}
if (fwrite(&num,sizeof(int),1,fp)!=1)
{
printf("写入文件错误!\n");
}
for (i=0;i<num;i++)
{
if (fwrite(&students[i],sizeof(struct Student),1,fp)!=1)
{
printf("写入文件错误!\n");
}
}
fclose(fp);
}
/*一级菜单*/
/*账号密码登录*/
void Level_1_menu( )
{ char account[20];
char password[30];
int i = 0;
int j = 3;
for (; i < 3; i++){
printf("\n\n\n\n\t\t\t\t\t\t *主菜单*\n");
printf("\t\t\t\t\t\t******************\n");
printf("\t\t\t\t\t\t*请输入您的账号：*\n");
printf("\t\t\t\t\t\t******************\n");
printf(" 请输入:");
scanf ("%s", account);
printf("\t\t\t\t\t\t******************\n");
//scanf ("%s", account);
printf("\t\t\t\t\t\t******************\n");
printf("\t\t\t\t\t\t*请输入您的密码：*\n");
printf("\t\t\t\t\t\t******************\n");
printf(" 请输入:");
scanf ("%s", password);
if (strcmp(USER, account) == 0 && strcmp(PW, password) == 0){
printf("登录成功！\n");
break;
}
else{
j--;
printf("登录失败您还有%d次机会！\n", j);
}
}
if (i == 3){
printf("登录失败，退出！");
}
//system("pause");
system("cls");
system("color f0");
}
/*增加学生信息三级菜单模块*/
void Student_add_Level_3_menu()
{
int choice;
while(1)
{
system("cls");
system("color f0");
IO_ReadInfo(); //读取文件
printf("\t\t\t\t\t\t1. 单个添加学生信息\n");
printf("\t\t\t\t\t\t2. 批量添加学生信息\n");
printf("\t\t\t\t\t\t3. 返回上一级菜单\n");
printf("\t\t\t\t\t\t4. 返回主菜单\n");
printf("\t\t\t\t\t\t请选择(1-4):");
scanf("%d",&choice);
getchar();
switch(choice)
{
case 1:Student_Insert();
IO_WriteInfo(); //写入文件
break;
case 2:Student_many1();
IO_WriteInfo(); //写入文件
break;
case 3:Level_2_menu();
break;
case 4:Level_menu();
break;
}
IO_WriteInfo(); //写入文件
}
//Student_Insert();
}
/*二级菜单*/
/*主菜单*/
void Level_2_menu( )
{
int choice;
while(1)
{
/*二级菜单*/
/*主菜单*/
system("cls");
system("color f0");
IO_ReadInfo(); //读取文件
printf("\n\t\t\t\t\t\t------ 学生成绩管理系统------\n");
printf("\t\t\t\t\t\t1. 增加学生记录\n");
printf("\t\t\t\t\t\t2. 修改学生记录\n");
printf("\t\t\t\t\t\t3. 删除学生记录\n");
printf("\t\t\t\t\t\t4. 查询学生记录\n");
printf("\t\t\t\t\t\t5. 统计学生记录\n");
printf("\t\t\t\t\t\t6. 退出\n");
printf("\t\t\t\t\t\t请选择(1-6):");
scanf("%d",&choice);
getchar();
switch(choice)
{
case 1:
Student_add_Level_3_menu();
break;
case 2:
Student_Modify();
break;
case 3:
student_Delete_menu();
break;
case 4:
Student_Search_menu();
break;
case 5:
Student_Tongji_menu();
break;
case 6:
Level_menu();
break;
}
IO_WriteInfo();
}
}
/*学生端成绩查询模块*/
void student_Delete_menu()
{
int choice;
while(1)
{
system("cls");
system("color f0");
IO_ReadInfo(); //读取文件
printf("\n\n\n\n\t\t\t\t\t\t************************\n");
printf("\t\t\t\t\t\t* 删除学生信息菜单******\n");
printf("\t\t\t\t\t\t************************\n");
printf("\t\t\t\t\t\t*1、按姓名删除信息 *\n");
printf("\t\t\t\t\t\t*2、按学号删除信息 *\n");
printf("\t\t\t\t\t\t*3、返回上一级功能菜单 *\n");
printf("\t\t\t\t\t\t*4、返回主菜单 *\n");
printf("\t\t\t\t\t\t************************\n");
printf("\t\t\t\t\t\t************************\n");
printf(" 请选择(1-4):");
scanf("%d",&choice);
switch(choice)
{
case 1:
system("cls");
system("color f0");
Student_Delete_1();
break;
case 2:
system("cls");
system("color f0");
Student_Delete();
break;
case 3:
Level_2_menu();
break;
case 4:
Level_menu();
break;
}
IO_WriteInfo();
}
}
/*学生端成绩查询模块*/
void student_menu()
{
int choice;
while(1)
{
system("cls");
system("color f0");
IO_ReadInfo(); //读取文件
printf("\n\n\n\n\t\t\t\t\t\t*******************\n");
printf("\t\t\t\t\t\t* 学生菜单 *\n");
printf("\t\t\t\t\t\t*******************\n");
printf("\t\t\t\t\t\t*1、按姓名查询成绩*\n");
printf("\t\t\t\t\t\t*2、按学号查询成绩*\n");
printf("\t\t\t\t\t\t*3、查询课程信息 *\n");
printf("\t\t\t\t\t\t*4、退出 *\n");
printf("\t\t\t\t\t\t*******************\n");
printf("\t\t\t\t\t\t*******************\n");
printf(" 请选择(1-3):");
scanf("%d",&choice);
switch(choice)
{
case 1:
system("cls");
system("color f0");
Student_Select_1();
break;
case 2:
Student_Select_2();
break;
case 3:
student_menu1();
break;
case 4:
Level_menu();
break;
}
IO_WriteInfo();
}
}
void student_Kecheng_menu1()
{ printf("\n\n\n\n\t\t\t\t\t\t************************************************\n");
printf("\t\t\t\t\t\t* 课程代号 课程名称 学分 必修/选修*\n");
printf("\t\t\t\t\t\t*B27020100 中国近现代史纲要 2.0 必修 *\n");
printf("\t\t\t\t\t\t*B10060111 大学英语A1 4.0 必修 *\n");
printf("\t\t\t\t\t\t*B14010101 大学体育1 2.0 必修 *\n");
printf("\t\t\t\t\t\t*B06010111 高等数学A1 5.0 必修 *\n");
printf("\t\t\t\t\t\t*B08050101 软件技术导论 2.0 必修 *\n");
printf("\t\t\t\t\t\t*B08010100 C语言程序设计 5.0 必修 *\n");
printf("\t\t\t\t\t\t*B08010201 C语言程序设计实训1 2.0 必修 *\n");
printf("\t\t\t\t\t\t*B08056601 创新与指导实践1 1.0 必修 *\n");
printf("\t\t\t\t\t\t*B21991100 军事教育 2.0 选修 *\n");
printf("\t\t\t\t\t\t**************************************************\n");
printf("\t\t\t\t\t\t**************************************************\n");
printf("\t\t\t\t\t\t1. 返回上一级菜单\n");
printf("\t\t\t\t\t\t2. 返回主菜单\n");
printf("\t\t\t\t\t\t请选择(1-2):");
int choice;
scanf("%d",&choice);
while(1)
switch(choice)
{
case 1:student_menu1();
break;
case 2:Level_menu();
break;
}
//写入文件
}
void student_Kecheng_menu2()
{ printf("\n\n\n\n\t\t\t\t\t\t************************************************\n");
printf("\t\t\t\t\t\t* 课程代号 课程名称 学分 必修/选修*\n");
printf("\t\t\t\t\t\t*B27010100 思想道德修养 3.0 必修 *\n");
printf("\t\t\t\t\t\t*B10060112 大学英语A2 4.0 必修 *\n");
printf("\t\t\t\t\t\t*B14010102 大学体育2 2.0 必修 *\n");
printf("\t\t\t\t\t\t*B06010112 高等数学A2 5.0 必修 *\n");
printf("\t\t\t\t\t\t*B08052200 数字逻辑设计 2.0 必修 *\n");
printf("\t\t\t\t\t\t*B06050131 大学物理C1 2.5 必修 *\n");
printf("\t\t\t\t\t\t*B06020100 离散数学 4.0 必修 *\n");
printf("\t\t\t\t\t\t*B08056601 创新与指导实践2 1.0 必修 *\n");
printf("\t\t\t\t\t\t*B21991100 C语言程序设计实践2 2.0 选修 *\n");
printf("\t\t\t\t\t\t**************************************************\n");
printf("\t\t\t\t\t\t**************************************************\n");
printf("\t\t\t\t\t\t1. 返回上一级菜单\n");
printf("\t\t\t\t\t\t2. 返回主菜单\n");
printf("\t\t\t\t\t\t请选择(1-2):");
int choice;
scanf("%d",&choice);
while(1)
switch(choice)
{
case 1:student_menu1();
break;
case 2:Level_menu();
break;
}
//写入文件
}
/*学生端学生课程查询模块*/
void student_menu1()
{
int choice;
while(1)
{
system("cls");
system("color f0");
IO_ReadInfo(); //读取文件
printf("\n\n\n\n\t\t\t\t\t\t*******************\n");
printf("\t\t\t\t\t\t* 课程信息 *\n");
printf("\t\t\t\t\t\t*******************\n");
printf("\t\t\t\t\t\t*1、第一学期 *\n");
printf("\t\t\t\t\t\t*2、第二学期 *\n");
printf("\t\t\t\t\t\t*3、第三学期 *\n");
printf("\t\t\t\t\t\t*4、第四学期 *\n");
printf("\t\t\t\t\t\t*5、第五学期 *\n");
printf("\t\t\t\t\t\t*6、第六学期 *\n");
printf("\t\t\t\t\t\t*7、第七学期 *\n");
printf("\t\t\t\t\t\t*8、退出 *\n");
printf("\t\t\t\t\t\t*******************\n");
printf("\t\t\t\t\t\t*******************\n");
printf(" 请选择(1-3):");
scanf("%d",&choice);
switch(choice)
{
case 1:
system("cls");
system("color f0");
student_Kecheng_menu1();
break;
case 2:
system("cls");
system("color f0");
student_Kecheng_menu2();
break;
case 3:
break;
case 4:
break;
case 5:
break;
case 6:
break;
case 7:
break;
case 8:
Level_menu();
break;
}
IO_WriteInfo();
}
}
/*统计菜单模块*/
void Student_Tongji_menu()
{
int choice;
while(1)
{
system("cls");
system("color f0");
IO_ReadInfo(); //读取文件
printf("\n\n\n\n\t\t\t\t\t\t******************************\n");
printf("\t\t\t\t\t\t* 学生统计菜单 *\n");
printf("\t\t\t\t\t\t******************************\n");
printf("\t\t\t\t\t\t*1、按C语言成绩从高到低排序 *\n");
printf("\t\t\t\t\t\t*2、按C语言成绩从低到高排序 *\n");
printf("\t\t\t\t\t\t*3、按宿舍成员进行统计 *\n");
printf("\t\t\t\t\t\t*4、奖学金评定 *\n");
printf("\t\t\t\t\t\t*5、返回功能菜单 *\n");
printf("\t\t\t\t\t\t*6、返回主菜单 *\n");
printf("\t\t\t\t\t\t******************************\n");
printf("\t\t\t\t\t\t******************************\n");
printf(" 请选择(1-5):");
scanf("%d",&choice);
switch(choice)
{
case 1:
Student_From_high_to_low();
Student_Display1();
break;
case 2:
Student_From_low_to_high();
Student_Display1();
break;
case 3:
Student_SearchBySushe();
break;
case 4:
Student_From_high_to_low1();
Student_Display2();
break;
case 5:
Level_2_menu( );
break;
case 6:
Level_menu();
break;
}
IO_WriteInfo();
}
}
/*统计菜单模块*/
void Student_Tongji_menu2()
{
int choice;
while(1)
{
IO_ReadInfo(); //读取文件
printf("\n\n\n\n\t\t\t\t\t\t******************************\n");
printf("\t\t\t\t\t\t* 你目前在学生宿舍统计页面！ *\n");
printf("\t\t\t\t\t\t******************************\n");
printf("\t\t\t\t\t\t*1、返回上一级统计菜单 *\n");
printf("\t\t\t\t\t\t*2、返回功能选择菜单 *\n");
printf("\t\t\t\t\t\t*3、返回主菜单 *\n");
printf("\t\t\t\t\t\t******************************\n");
printf("\t\t\t\t\t\t******************************\n");
printf(" 请选择(1-3):");
scanf("%d",&choice);
switch(choice)
{
case 1:
system("cls");
system("color f0");
Student_Tongji_menu();
case 2:
system("cls");
system("color f0");
Level_2_menu( );
case 3:
system("cls");
system("color f0");
Level_menu();
}
}
}
/*统计菜单模块*/
void Student_Tongji_menu3()
{
int choice;
while(1)
{
IO_ReadInfo(); //读取文件
printf("\n\n\n\n\t\t\t\t\t\t******************************\n");
printf("\t\t\t\t\t\t* 你目前按C语言成绩统计页面！*\n");
printf("\t\t\t\t\t\t******************************\n");
printf("\t\t\t\t\t\t*1、返回上一级统计菜单 *\n");
printf("\t\t\t\t\t\t*2、返回功能选择菜单 *\n");
printf("\t\t\t\t\t\t*3、返回主菜单 *\n");
printf("\t\t\t\t\t\t******************************\n");
printf("\t\t\t\t\t\t******************************\n");
printf(" 请选择(1-3):");
scanf("%d",&choice);
switch(choice)
{
case 1:
system("cls");
system("color f0");
Student_Tongji_menu();
case 2:
system("cls");
system("color f0");
Level_2_menu( );
case 3:
system("cls");
system("color f0");
Level_menu();
}
}
}
/*第一级主菜单学生or老师的判断*/
void Level_menu()
{ int choice;
while(1)
{
system("cls");
system("color f0");
printf("\n\n\n\n\n\n\n\t\t\t\t\t\t******************\n");
printf("\t\t\t\t\t\t*1、教师端 *\n");
printf("\t\t\t\t\t\t*2、学生端 *\n");
printf("\t\t\t\t\t\t*3、退出 *\n");
printf("\t\t\t\t\t\t******************\n");
printf(" 请选择(1-3):");
scanf("%d",&choice);
switch(choice)
{
case 1:
system("cls");
system("color f0");
Level_1_menu(); //一级菜单，密码登录。
IO_ReadInfo(); //读取文件
Level_2_menu(); //二级菜单-主菜单
IO_WriteInfo();
break;
case 2:
student_menu();
break;
case 3:
exit(0);
break;
}
}
}
/***********主程序*********/
main()
{
Level_menu();
}
```
