用 c 语言在 vs2022 上写一个小时成绩管理系统要 200 行以上十个函数以上

好的，以下是一个简单的小时成绩管理系统，包括十个函数，共计 200 多行代码。

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

#define MAX_STUDENTS 50
#define MAX_NAME_LEN 20

struct Student {
    char name[MAX_NAME_LEN];
    int score;
};

struct Student students[MAX_STUDENTS];
int num_students = 0;

void add_student();
void remove_student();
void update_score();
void print_all();
void print_pass();
void print_fail();
void print_highest();
void print_lowest();
void print_average();

int main() {
    int choice;

    while (1) {
        printf("\n1. Add student\n");
        printf("2. Remove student\n");
        printf("3. Update score\n");
        printf("4. Print all students\n");
        printf("5. Print passing students\n");
        printf("6. Print failing students\n");
        printf("7. Print student with highest score\n");
        printf("8. Print student with lowest score\n");
        printf("9. Print average score\n");
        printf("0. Exit\n");
        printf("Enter your choice: ");
        scanf("%d", &choice);

        switch (choice) {
            case 1:
                add_student();
                break;
            case 2:
                remove_student();
                break;
            case 3:
                update_score();
                break;
            case 4:
                print_all();
                break;
            case 5:
                print_pass();
                break;
            case 6:
                print_fail();
                break;
            case 7:
                print_highest();
                break;
            case 8:
                print_lowest();
                break;
            case 9:
                print_average();
                break;
            case 0:
                printf("Goodbye!\n");
                exit(0);
            default:
                printf("Invalid choice!\n");
        }
    }

    return 0;
}

void add_student() {
    if (num_students == MAX_STUDENTS) {
        printf("Maximum number of students reached!\n");
        return;
    }

    struct Student s;
    printf("Enter name: ");
    scanf("%s", s.name);
    printf("Enter score: ");
    scanf("%d", &s.score);
    students[num_students++] = s;
}

void remove_student() {
    char name[MAX_NAME_LEN];
    printf("Enter name of student to remove: ");
    scanf("%s", name);

    int index = -1;
    for (int i = 0; i < num_students; i++) {
        if (strcmp(students[i].name, name) == 0) {
            index = i;
            break;
        }
    }

    if (index == -1) {
        printf("Student not found!\n");
        return;
    }

    for (int i = index; i < num_students - 1; i++) {
        students[i] = students[i + 1];
    }

    num_students--;
    printf("Student removed.\n");
}

void update_score() {
    char name[MAX_NAME_LEN];
    printf("Enter name of student to update score: ");
    scanf("%s", name);

    int index = -1;
    for (int i = 0; i < num_students; i++) {
        if (strcmp(students[i].name, name) == 0) {
            index = i;
            break;
        }
    }

    if (index == -1) {
        printf("Student not found!\n");
        return;
    }

    printf("Enter new score: ");
    scanf("%d", &students[index].score);
    printf("Score updated.\n");
}

void print_all() {
    printf("%-20s %-10s\n", "Name", "Score");
    for (int i = 0; i < num_students; i++) {
        printf("%-20s %-10d\n", students[i].name, students[i].score);
    }
}

void print_pass() {
    printf("%-20s %-10s\n", "Name", "Score");
    for (int i = 0; i < num_students; i++) {
        if (students[i].score >= 60) {
            printf("%-20s %-10d\n", students[i].name, students[i].score);
        }
    }
}

void print_fail() {
    printf("%-20s %-10s\n", "Name", "Score");
    for (int i = 0; i < num_students; i++) {
        if (students[i].score < 60) {
            printf("%-20s %-10d\n", students[i].name, students[i].score);
        }
    }
}

void print_highest() {
    int highest_score = -1;
    for (int i = 0; i < num_students; i++) {
        if (students[i].score > highest_score) {
            highest_score = students[i].score;
        }
    }

    printf("%-20s %-10s\n", "Name", "Score");
    for (int i = 0; i < num_students; i++) {
        if (students[i].score == highest_score) {
            printf("%-20s %-10d\n", students[i].name, students[i].score);
        }
    }
}

void print_lowest() {
    int lowest_score = 101;
    for (int i = 0; i < num_students; i++) {
        if (students[i].score < lowest_score) {
            lowest_score = students[i].score;
        }
    }

    printf("%-20s %-10s\n", "Name", "Score");
    for (int i = 0; i < num_students; i++) {
        if (students[i].score == lowest_score) {
            printf("%-20s %-10d\n", students[i].name, students[i].score);
        }
    }
}

void print_average() {
    int total_score = 0;
    for (int i = 0; i < num_students; i++) {
        total_score += students[i].score;
    }

    float average_score = (float)total_score / num_students;
    printf("Average score: %.2f\n", average_score);
}