用c语言写一个详细的学生选课系统附带代码_c语言学生选课系统代码

以下是一个简单的学生选课系统的示例：

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
 
#define MAX_STUDENTS 100
#define MAX_COURSES 50
 
typedef struct {
    char name[30];
    int student_id;
    char major[30];
    int course_ids[MAX_COURSES];
    int num_courses;
} Student;
 
typedef struct {
    char title[30];
    int course_id;
    char instructor[30];
    int max_students;
    int num_students;
    int student_ids[MAX_STUDENTS];
} Course;
 
Student students[MAX_STUDENTS];
Course courses[MAX_COURSES];
int num_students = 0;
int num_courses = 0;
 
int add_student(char *name, int student_id, char *major) {
    if (num_students < MAX_STUDENTS) {
        Student *student = &students[num_students];
        strcpy(student->name, name);
        student->student_id = student_id;
        strcpy(student->major, major);
        student->num_courses = 0;
        num_students++;
        return 1;
    }
    return 0;
}
 
int add_course(char *title, int course_id, char *instructor, int max_students) {
    if (num_courses < MAX_COURSES) {
        Course *course = &courses[num_courses];
        strcpy(course->title, title);
        course->course_id = course_id;
        strcpy(course->instructor, instructor);
        course->max_students = max_students;
        course->num_students = 0;
        num_courses++;
        return 1;
    }
    return 0;
}
 
int enroll_student(int student_id, int course_id) {
    if (student_id >= 0 && student_id < num_students && course_id >= 0 && course_id < num_courses) {
        Student *student = &students[student_id];
        Course *course = &courses[course_id];
        if (student->num_courses < MAX_COURSES && course->num_students < course->max_students) {
            student->course_ids[student->num_courses] = course_id;
            student->num_courses++;
            course->student_ids[course->num_students] = student_id;
            course->num_students++;
            return 1;
        }
    }
    return 0;
}
 
int main() {
    add_student("Alice", 0, "Computer Science");
    add_student("Bob", 1, "Mathematics");
    add_student("Charlie", 2, "Physics");
 
    add_course("Introduction to Computer Science", 0, "Dr. Smith", 30);
    add_course("Calculus I", 1, "Dr. Johnson", 25);
    add_course("Physics I", 2, "Dr. Lee", 20);
 
    enroll_student(0, 0);
    enroll_student(1, 1);
    enroll_student(2, 2);
 
    printf("Students enrolled in Introduction to Computer Science:\n");
    for (int i = 0; i < courses[0].num_students; i++) {
        printf("- %s\n", students[courses[0].student_ids[i]].name);
    }
 
    printf("Courses enrolled by Alice:\n");
    for (int i = 0; i < students[0].num_courses; i++) {
        printf("- %s\n", courses[students[0].course_ids[i]].title);
    }
 
    return 0;
}

请注意，此代码仅用于演示学生选课系统的基本概念。实际上，一个真正的学生选课系统需要更复杂的数据模型、用户界面、数据库存储和其他功能等。

希望这个代码示例对你有帮助，如果你需要更多帮助，请随时问我。