c语言学生信息管理系统

好的，学生信息管理系统可以分为以下几个模块：学生信息录入、学生信息查询、学生信息删除、学生信息修改。

以下是一个简单的C语言学生信息管理系统代码：

#include <stdio.h>
#include <string.h>

struct student {
    char name[50];
    int age;
    char gender[10];
    int score;
} students[100];

int num_students = 0;

void add_student() {
    struct student s;
    printf("Enter name: ");
    scanf("%s", s.name);
    printf("Enter age: ");
    scanf("%d", &s.age);
    printf("Enter gender: ");
    scanf("%s", s.gender);
    printf("Enter score: ");
    scanf("%d", &s.score);
    students[num_students] = s;
    num_students++;
}

void print_student(struct student s) {
    printf("Name: %s\n", s.name);
    printf("Age: %d\n", s.age);
    printf("Gender: %s\n", s.gender);
    printf("Score: %d\n", s.score);
}

void search_student() {
    char name[50];
    printf("Enter name to search: ");
    scanf("%s", name);
    int found = 0;
    for (int i = 0; i < num_students; i++) {
        if (strcmp(students[i].name, name) == 0) {
            print_student(students[i]);
            found = 1;
            break;
        }
    }
    if (!found) {
        printf("Student not found\n");
    }
}

void delete_student() {
    char name[50];
    printf("Enter name to delete: ");
    scanf("%s", name);
    int found = 0;
    for (int i = 0; i < num_students; i++) {
        if (strcmp(students[i].name, name) == 0) {
            for (int j = i; j < num_students - 1; j++) {
                students[j] = students[j + 1];
            }
            num_students--;
            printf("Student deleted\n");
            found = 1;
            break;
        }
    }
    if (!found) {
        printf("Student not found\n");
    }
}

void modify_student() {
    char name[50];
    printf("Enter name to modify: ");
    scanf("%s", name);
    int found = 0;
    for (int i = 0; i < num_students; i++) {
        if (strcmp(students[i].name, name) == 0) {
            printf("Enter new name: ");
            scanf("%s", students[i].name);
            printf("Enter new age: ");
            scanf("%d", &students[i].age);
            printf("Enter new gender: ");
            scanf("%s", students[i].gender);
            printf("Enter new score: ");
            scanf("%d", &students[i].score);
            printf("Student modified\n");
            found = 1;
            break;
        }
    }
    if (!found) {
        printf("Student not found\n");
    }
}

int main() {
    int choice;
    do {
        printf("1. Add student\n");
        printf("2. Search student\n");
        printf("3. Delete student\n");
        printf("4. Modify student\n");
        printf("5. Quit\n");
        printf("Enter choice: ");
        scanf("%d", &choice);
        switch (choice) {
            case 1:
                add_student();
                break;
            case 2:
                search_student();
                break;
            case 3:
                delete_student();
                break;
            case 4:
                modify_student();
                break;
            case 5:
                break;
            default:
                printf("Invalid choice\n");
                break;
        }
    } while (choice != 5);
    return 0;
}

在该示例程序中，我们使用结构体表示学生信息，并使用数组来存储多个学生的信息。我们还使用了各种函数来处理学生信息，例如添加学生、搜索学生、删除学生和修改学生。最后，在主函数中，我们使用一个循环菜单来让用户选择需要执行的操作。