C语言实现学生信息管理系统（文件版）
程序员文章站
2022-05-11 22:48:21
本文实例为大家分享了c语言实现学生信息管理系统的具体代码，供大家参考，具体内容如下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...
本文实例为大家分享了c语言实现学生信息管理系统的具体代码，供大家参考，具体内容如下
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
#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();
}
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