c语言的学生信息管理系统（学生信息系统C语言）

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

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1422 1423 1424 1425 1426 1427 1428 1429 1430 1431 1432 1433 1434 1435 1436 1437 1438 1439 1440 1441 1442 1443 1444 1445 1446 1447 1448 1449 1450 1451 1452 1453 1454 1455 1456 1457 1458 1459 1460 1461 1462 1463 1464 1465 1466 1467 1468 1469 1470 1471 1472 1473 1474 1475 1476 1477 1478 1479 1480 1481 1482 1483 #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(); }