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头文件

#pragma once
#define _CRT_SECURE_NO_WARNINGS 1
#include<stdio.h>//输入输出函数
#include<stdlib.h>//动态分配函数和随机函数
#include<windows.h>//控制台程序，用来实现cmd指令，title指令，cls指令等等
#include<locale.h>//本地化，用于控制从标准库中对于不同地区会产生不一样行为的部分
#include<string.h>//字符串函数
//宏定义，学科排序
#define functioncreate(major) void major##compare(mana mn){\int i,j,sum=mn->sum;\for(i=0;i<sum-1;i++)\for(j=0;j<sum-i-1;j++)\if(mn->student[j].grade->major<mn->student[j+1].grade->major)\swap(&mn->student[j],&mn->student[j+1]);\
}
typedef struct a1 {	//学生成绩信息int Chinese;int Math;int English;int Physics;int Chemistry;int Organism;int All;
}*grade;
typedef struct a2 {	//学生信息   自定义结构体char name[10];char stunum[20];grade grade;int Class;
}*student;
typedef struct a3 {	//全体学生信息   自定义结构体int sum;student student;int capacity;
}*mana;
typedef struct m {int kind;char account[20];char password[20];char stunum[20];
}acco;
void setpos(short x, short y);	//设置位置
void init();	//初始化
void welcome();	//欢迎界面
void manager(mana mn);	//开始
void menu();	//菜单
void addstu(mana mn);//加入
void initmana(mana mn);// 初始化
void exportcapacity(mana mn);//扩容
void modifystu(mana mn);//修改个人
void showsin(student stu, int i);//展示单人
void showall(mana mn);
void clean(mana mn);//清空
void swap(student p1, student p2);
void compare(mana mn);
void initstu(student mn);
void stunumcompare(mana mn);
void enter();
int identify(int a);
void regist();
void read(mana all);
void save(mana all);
void clear(mana all);
void teacher(mana all);
void stu(mana all);

源文件

#include "FileName.h"
// 检查字符串是否全部为字母
bool is_alpha(const char* s) {for (int i = 0; i < strlen(s); i++) {if (!isalpha(s[i])) {return false;}}return true;
}// 检查字符串是否全部为数字
bool is_number(const char* s) {for (int i = 0; i < strlen(s); i++) {if (!isdigit(s[i])) {return false;}}return true;
}// 设置控制台光标位置
void setpos(short x, short y) {HANDLE mn = GetStdHandle(STD_OUTPUT_HANDLE);//此处运用句柄，句柄可以理解为一个可以操作其他设备的东西//COORD pos = { x,y };//COORD是windows APL中定义的一个结构体，表示一个字符在控制台屏幕缓冲区上的坐标SetConsoleCursorPosition(mn, pos);
}// 初始化控制台，隐藏光标
void init() {HANDLE hOutput = GetStdHandle(STD_OUTPUT_HANDLE);//STD_OUTPUT_HANDLE即为输出设备，可理解为窗口//影藏光标操作CONSOLE_CURSOR_INFO CursorInfo;GetConsoleCursorInfo(hOutput, &CursorInfo);//获取控制台光标信息,检索有关指定控制台屏幕缓冲区的光标大小和可见性的信息CursorInfo.bVisible = false;//隐藏控制台光标SetConsoleCursorInfo(hOutput, &CursorInfo);//设置控制台光标状态
}// 显示欢迎界面
void welcome() {init();system("title 学生成绩管理系统");//运用title指令修改窗口指令为“学生成绩管理系统”system("mode con cols=100 lines=30");//运用cmd指令将黑窗大小设置为30行，100列的大小setpos(40, 12);//定义上面那行字出现的位置printf("欢迎来到学生成绩管理系统");setpos(40, 13);system("pause");//运用pause指令，用处是按下任意键才能指向下一操作
}// 显示主菜单
void menu() {//菜单system("cls");//cls指令：清除1setpos(30, 5);printf("请点击相应按键决定您的下一步操作");setpos(30, 10);printf("1.添加新学生-------2.清空");setpos(30, 12);printf("3.排序---------------4.班级排名");setpos(30, 14);printf("5.修改学生信息-----6.查看学生成绩");setpos(30, 16);printf("------------0.退出-----------");setpos(38, 20);
}// 初始化管理结构
void initmana(mana mn) {mn->capacity = 0;mn->student = NULL;mn->sum = 0;
}// 扩展学生数组容量
void exportcapacity(mana mn) {if (mn->capacity > mn->sum)return;int capacity = mn->capacity == 0 ? 1 : 2 * mn->capacity;student temp = (student)realloc(mn->student, sizeof(struct a2) * capacity);if (temp == NULL) {printf("Error: could not allocate memory\n");return;}mn->student = temp;mn->capacity = capacity;
}// 获取用户输入并验证
void get_input(const char* prompt, char* input, bool(*validate)(const char*)) {do {system("cls");setpos(30, 10);printf("%s", prompt);scanf("%s", input);} while (!validate(input));
}// 初始化学生信息，包括班级信息
void initstu(student mn) {student now = mn;int sum = 0;char temp[100];get_input("请输入新学生的姓名(拼音):", temp, is_alpha);strcpy(now->name, temp);char stunum[100];get_input("请输入新学生的学号:", stunum, is_number);strcpy(now->stunum, stunum);char classStr[100];get_input("请输入新学生的班级:", classStr, is_number);now->Class = atoi(classStr);int Chinese, Math, English, Physics, Chemistry, Organism;int* subjects[] = { &Chinese, &Math, &English, &Physics, &Chemistry, &Organism };const char* subject_names[] = { "语文", "数学", "英语", "物理", "化学", "生物" };for (int i = 0; i < 6; i++) {char score[100];char prompt[50];sprintf(prompt, "请输入%s成绩:", subject_names[i]);get_input(prompt, score, is_number);*subjects[i] = atoi(score);sum += *subjects[i];}now->grade->Chinese = Chinese;now->grade->Math = Math;now->grade->English = English;now->grade->Physics = Physics;now->grade->Chemistry = Chemistry;now->grade->Organism = Organism;now->grade->All = sum;system("cls");
}// 学号比较函数，用于排序
void stunumcompare(mana mn) {int i, j, sum = mn->sum;for (i = 0; i < sum - 1; i++) {for (j = 0; j < sum - i - 1; j++) {if (strcmp(mn->student[j].stunum,mn->student[j+1].stunum))swap(&mn->student[j], &mn->student[j + 1]);}}
}// 添加新学生
void addstu(mana mn) {system("cls");exportcapacity(mn);mn->student[mn->sum].grade = (grade)malloc(sizeof(struct a1));initstu(&mn->student[mn->sum]);mn->sum++;setpos(40, 10);printf("加入完成");setpos(40, 12);system("pause");system("cls");
}// 修改学生信息
void modifystu(mana mn) {system("cls");setpos(30, 10);int sum = 0;printf("请输入你要修改的学生名字(拼音):");char s[10];scanf("%s", s);int i;for (i = 0; i < mn->sum; i++) {if (strcmp(s, mn->student[i].name) == 0)break;}system("cls");if (i == mn->sum) {setpos(30, 10);printf("查无此人，");system("pause");return;}student now = &(mn->student[i]);initstu(now);
}// 显示单个学生信息，包括班级
void showsin(student stu, int i) {setpos(20, 5 + 2 * i);printf("%d", stu->Class); // 显示班级信息setpos(25, 5 + 2 * i);printf("%s", stu->name); // 显示学生姓名setpos(30, 5 + 2 * i);printf("%s", stu->stunum); // 显示学号setpos(35, 5 + 2 * i);printf("%d", stu->grade->Chinese); // 显示语文成绩setpos(40, 5 + 2 * i);printf("%d", stu->grade->Math); // 显示数学成绩setpos(45, 5 + 2 * i);printf("%d", stu->grade->English); // 显示英语成绩setpos(50, 5 + 2 * i);printf("%d", stu->grade->Physics); // 显示物理成绩setpos(55, 5 + 2 * i);printf("%d", stu->grade->Chemistry); // 显示化学成绩setpos(60, 5 + 2 * i);printf("%d", stu->grade->Organism); // 显示生物成绩setpos(65, 5 + 2 * i);printf("%d", stu->grade->All); // 显示总分
}// 显示所有学生信息，包括表头
void showall(mana mn) {int i = 0, sum = mn->sum;if (sum == 0) {setpos(45, 13);printf("暂空"); // 若无学生信息，显示暂空}system("cls");// 显示表头setpos(20, 3);printf("班级");setpos(25, 3);printf("姓名");setpos(30, 3);printf("学号");setpos(35, 3);printf("语文");setpos(40, 3);printf("数学");setpos(45, 3);printf("英语");setpos(50, 3);printf("物理");setpos(55, 3);printf("化学");setpos(60, 3);printf("生物");setpos(65, 3);printf("总分");// 显示每个学生的信息for (i = 0; i < sum; i++)showsin(&mn->student[i], i);setpos(50, 25);system("pause");system("cls");
}// 清空学生信息
void clean(mana mn) {system("cls");free(mn->student); // 释放学生数组内存mn->student = NULL;mn->capacity = mn->sum = 0; // 重置容量和学生数量setpos(40, 14);printf("清空成功");system("pause");
}// 交换两个学生的信息
void swap(student p1, student p2) {struct a2 mn = *p1;*p1 = *p2;*p2 = mn;
}// 未实现的函数占位符
functioncreate(Math)
functioncreate(Chinese)
functioncreate(English)
functioncreate(Physics)
functioncreate(Chemistry)
functioncreate(Organism)
functioncreate(All)// 选择排序方式并执行
void compare(mana mn) {system("cls");setpos(37, 10);printf("请选择您的排序方式");// 显示排序选项setpos(35, 12);printf("1.语文");setpos(45, 12);printf("2.数学");setpos(35, 14);printf("3.英语");setpos(45, 14);printf("4.物理");setpos(35, 16);printf("5.化学");setpos(45, 16);printf("6.生物");setpos(35, 18);printf("7.学号");setpos(45, 18);printf("8.总分");setpos(40, 20);int a;scanf("%d", &a);// 根据选择执行相应的排序函数switch (a) {case 1:Chinesecompare(mn); break;case 2:Mathcompare(mn); break;case 3:Englishcompare(mn); break;case 4:Physicscompare(mn); break;case 5:Chemistrycompare(mn); break;case 6:Organismcompare(mn); break;case 7:stunumcompare(mn); break;case 8:Allcompare(mn); break;}system("cls");setpos(40, 14);printf("排序完成，请自行查看");setpos(40, 15);system("pause");
}// 显示指定班级的学生信息
void showClassStudents(mana mn) {system("cls");int classNum; // 用户输入的班级号setpos(30, 10);printf("请输入要查询的班号: ");scanf("%d", &classNum);// 创建新的mana对象用于存储特定班级的学生mana classMn = (mana)malloc(sizeof(struct a3));initmana(classMn);// 遍历原始mana对象，复制符合班级号的学生到新的mana对象for (int i = 0; i < mn->sum; i++) {if (mn->student[i].Class == classNum) {exportcapacity(classMn);classMn->student[classMn->sum] = mn->student[i];classMn->sum++;}}if (classMn->sum == 0) {system("cls");setpos(30, 10);printf("该班级无学生记录");system("pause");}else {compare(classMn);showall(classMn);}// 释放新创建的mana对象内存free(classMn->student);free(classMn);setpos(50, 25);system("cls");
}// 程序入口，显示欢迎界面并处理用户选择
void manager(mana mn) {int choose;do {menu(); // 显示主菜单scanf("%d", &choose);// 根据用户选择执行相应功能switch (choose) {case 1:addstu(mn); break;case 2:clean(mn); break;case 3:compare(mn); break;case 4:showClassStudents(mn); break;case 5:modifystu(mn); break;case 6:showall(mn); break;case 0:break;}save(mn);} while (choose);
}
void save(mana all) {//人数，空间，学生信息FILE* file = fopen("allinfo.txt", "w");fprintf(file,"%d ",all->sum);fprintf(file, "%d ", all->capacity);fclose(file);file = fopen("info.txt", "w");//班级 学号 姓名 成绩student stu=all->student;int i;for (i = 0; i < all->sum; i++) {fprintf(file, "%d ", stu[i].Class);fprintf(file, "%s ", stu[i].stunum);fprintf(file, "%s ", stu[i].name);fprintf(file, "%d %d %d %d %d %d %d ", stu[i].grade->All, stu[i].grade->Chemistry, stu[i].grade->Chinese, stu[i].grade->English, stu[i].grade->Math, stu[i].grade->Organism, stu[i].grade->Physics);}fclose(file);
}
void read(mana all) {FILE* file = fopen("allinfo.txt", "r");fscanf(file,"%d",&all->sum);fscanf(file, "%d", &all->capacity);fclose(file);all->student = (student)malloc(sizeof(struct a2) * all->sum);student stu=all->student;file = fopen("info.txt", "r");int i;for (i = 0; i < all->sum; i++) {//班级 学号 姓名 成绩fscanf(file, "%d", &stu[i].Class);fscanf(file, "%s", stu[i].stunum);fscanf(file, "%s", stu[i].name);stu[i].grade = (grade)malloc(sizeof(struct a1));fscanf(file, "%d%d%d%d%d%d%d", &stu[i].grade->All, &stu[i].grade->Chemistry, &stu[i].grade->Chinese, &stu[i].grade->English, &stu[i].grade->Math, &stu[i].grade->Organism, &stu[i].grade->Physics);}
}
void regist() {system("cls");FILE* file = fopen("account number.txt", "a");acco m;setpos(40, 12);printf("请输入您的账号:");scanf("%s", m.account);system("cls");setpos(40, 12);printf("请输入您的密码:");scanf("%s", m.password);system("cls");setpos(35, 12);printf("请选择您的用户类型:1.管理员 2.老师 3.学生");setpos(50, 13);scanf("%d", &m.kind);system("cls");setpos(50, 14);printf("请输入您的学号/工号:");scanf("%s", &m.stunum);system("cls");setpos(40, 12);printf("恭喜您创建成功!");setpos(40, 13);fprintf(file, "%s %s %d %s\n",m.account,m.password,m.kind,m.stunum);fclose(file);system("pause");
}
int identify(int a) {system("cls");setpos(40, 12);printf("请输入您的账号:");char ac[20],nu[20];scanf("%s", ac);setpos(40, 13);printf("请输入您的密码:");scanf("%s", nu);system("cls");FILE* file = fopen("account number.txt","r");char ab[20], bc[20],num[20];int kind,flag=0;while (fscanf(file, "%s%s%d%s", ab, bc, &kind,num) != EOF) {if (strcmp(ac, ab) || strcmp(nu, bc))continue;flag = 1;break;}system("cls");if (flag) {setpos(40, 12);printf("欢迎使用本系统!");setpos(40, 13);system("pause");return 1;}setpos(40, 12);printf("账号密码错误，请重新输入");setpos(40, 13);system("pause");return 0;
}
void enter() {welcome();int a;mana mn = (mana)malloc(sizeof(struct a3));initmana(mn); // 初始化管理结构read(mn);while (1) {system("cls");setpos(40, 12);printf("请选择登陆方式:");setpos(29, 13);printf("1.管理员  2.老师  3.学生  4.退出  5.注册账号");setpos(40, 15);scanf("%d", &a);if (a == 4)break;if (a == 5) {regist();continue;}if (a != 1 && a != 2 && a != 3) {system("cls");setpos(40, 12);printf("选择错误");setpos(38, 13);system("pause");continue;}if (!identify(a))continue;switch (a) {case 1:manager(mn); break;case 2:teacher(mn); break;case 3:stu(mn); break;default:break;}}save(mn);clear(mn);
}
void clear(mana all) {int i;for (i = 0; i < all->sum; i++)free(all->student[i].grade);free(all->student);free(all);
}
void teacher(mana all) {system("cls");while (1) {setpos(40, 12);printf("是否查看班级信息:1.是  0.否");setpos(45, 13);int a;scanf("%d", &a);if (a)showClassStudents(all);elsebreak;}
}
void stu(mana all) {FILE* file = fopen("account number.txt", "r");int i;char stunum[20];flag:system("cls");setpos(40, 12);printf("请输入您的学号(输入0则退出):");scanf("%s", stunum);system("cls");if (!strcmp("0", stunum))return;for (i = 0; i < all->sum; i++) {if (strcmp(stunum, all->student[i].stunum))continue;break;}if (i == all->sum) {system("cls");setpos(40, 12);printf("学号不存在");setpos(40, 13);system("pause");goto flag;}setpos(20, 3);printf("班级");setpos(25, 3);printf("姓名");setpos(30, 3);printf("学号");setpos(35, 3);printf("语文");setpos(40, 3);printf("数学");setpos(45, 3);printf("英语");setpos(50, 3);printf("物理");setpos(55, 3);printf("化学");setpos(60, 3);printf("生物");setpos(65, 3);printf("总分");showsin(&all->student[i], 0);setpos(40, 12);system("pause");
}