教务管理系统c语言

教务管理系统可以使用C语言进行开发，但需要考虑到各种功能的实现和界面的设计。以下是一个简单的教务管理系统的C语言代码示例，仅供参考。

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#define MAX_STUDENT_NUM 100

struct Student {
    int id;
    char name[20];
    int score;
};

struct Student students[MAX_STUDENT_NUM];
int student_num = 0;

void add_student() {
    if (student_num >= MAX_STUDENT_NUM) {
        printf("Error: too many students!\n");
        return;
    }
    printf("Enter student id: ");
    scanf("%d", &students[student_num].id);
    printf("Enter student name: ");
    scanf("%s", students[student_num].name);
    printf("Enter student score: ");
    scanf("%d", &students[student_num].score);
    student_num++;
    printf("New student added.\n");
}

void print_students() {
    printf("ID\tName\tScore\n");
    for (int i = 0; i < student_num; i++) {
        printf("%d\t%s\t%d\n", students[i].id, students[i].name, students[i].score);
    }
}

void search_student() {
    int id;
    printf("Enter student id to search: ");
    scanf("%d", &id);
    for (int i = 0; i < student_num; i++) {
        if (students[i].id == id) {
            printf("ID\tName\tScore\n");
            printf("%d\t%s\t%d\n", students[i].id, students[i].name, students[i].score);
            return;
        }
    }
    printf("Student not found.\n");
}

void modify_student() {
    int id;
    printf("Enter student id to modify: ");
    scanf("%d", &id);
    for (int i = 0; i < student_num; i++) {
        if (students[i].id == id) {
            printf("Enter new student name: ");
            scanf("%s", students[i].name);
            printf("Enter new student score: ");
            scanf("%d", &students[i].score);
            printf("Student modified.\n");
            return;
        }
    }
    printf("Student not found.\n");
}

void delete_student() {
    int id;
    printf("Enter student id to delete: ");
    scanf("%d", &id);
    for (int i = 0; i < student_num; i++) {
        if (students[i].id == id) {
            for (int j = i; j < student_num - 1; j++) {
                students[j] = students[j + 1];
            }
            student_num--;
            printf("Student deleted.\n");
            return;
        }
    }
    printf("Student not found.\n");
}

int main() {
    int choice;
    while (1) {
        printf("Menu:\n");
        printf("1. Add student\n");
        printf("2. Print all students\n");
        printf("3. Search student\n");
        printf("4. Modify student\n");
        printf("5. Delete student\n");
        printf("6. Exit\n");
        printf("Enter your choice: ");
        scanf("%d", &choice);
        switch (choice) {
            case 1:
                add_student();
                break;
            case 2:
                print_students();
                break;
            case 3:
                search_student();
                break;
            case 4:
                modify_student();
                break;
            case 5:
                delete_student();
                break;
            case 6:
                return 0;
            default:
                printf("Invalid choice.\n");
        }
    }
    return 0;
}

这个示例实现了添加、查询、修改和删除学生信息的功能，通过一个菜单来选择操作。当然，这个示例还可以进行更多的优化和改进。