在右侧编辑器中的Begin-End之间补充代码，设计一个以链表为基础的学生信息管理，系统中包含五个函数的实现，具体功能如下：

好的，我明白了你的要求。以下是我为你设计的学生信息管理系统：

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

#define NAME_LEN 20
#define ID_LEN 10

typedef struct student {
    char id[ID_LEN];
    char name[NAME_LEN];
    int score;
    struct student *next;
} student;

student *create_list();
void print_list(student *head);
void add_student(student *head);
void delete_student(student *head);
void search_student(student *head);

int main() {
    student *head = create_list();
    int choice;

    while (1) {
        printf("\n1. Add student\n");
        printf("2. Delete student\n");
        printf("3. Search student\n");
        printf("4. Print list\n");
        printf("5. Quit\n\n");

        printf("Enter your choice: ");
        scanf("%d", &choice);

        switch (choice) {
            case 1:
                add_student(head);
                break;
            case 2:
                delete_student(head);
                break;
            case 3:
                search_student(head);
                break;
            case 4:
                print_list(head);
                break;
            case 5:
                return 0;
            default:
                printf("Invalid choice!\n");
        }
    }
}

student *create_list() {
    student *head = (student *)malloc(sizeof(student));
    head->next = NULL;
    return head;
}

void print_list(student *head) {
    student *p = head->next;
    printf("ID\tName\tScore\n");
    while (p != NULL) {
        printf("%s\t%s\t%d\n", p->id, p->name, p->score);
        p = p->next;
    }
}

void add_student(student *head) {
    student *p = head;
    while (p->next != NULL) {
        p = p->next;
    }

    student *new_student = (student *)malloc(sizeof(student));
    printf("Enter student ID: ");
    scanf("%s", new_student->id);
    printf("Enter student name: ");
    scanf("%s", new_student->name);
    printf("Enter student score: ");
    scanf("%d", &new_student->score);

    new_student->next = NULL;
    p->next = new_student;
}

void delete_student(student *head) {
    char id[ID_LEN];
    printf("Enter student ID to delete: ");
    scanf("%s", id);

    student *p = head->next;
    student *prev = head;

    while (p != NULL) {
        if (strcmp(p->id, id) == 0) {
            prev->next = p->next;
            printf("Deleted student with ID %s\n", p->id);
            free(p);
            return;
        }
        prev = p;
        p = p->next;
    }

    printf("Student with ID %s not found.\n", id);
}

void search_student(student *head) {
    char id[ID_LEN];
    printf("Enter student ID to search: ");
    scanf("%s", id);

    student *p = head->next;

    while (p != NULL) {
        if (strcmp(p->id, id) == 0) {
            printf("Found student:\n");
            printf("ID:\t%s\nName:\t%s\nScore:\t%d\n", p->id, p->name, p->score);
            return;
        }
        p = p->next;
    }

    printf("Student with ID %s not found.\n", id);
}

这个程序实现了以下五个函数：

1. `create_list()`：创建一个链表，并返回头结点。头结点不存储有效数据，因此它的成员变量`next`初始化为`NULL`。

2. `print_list(student *head)`：遍历链表并打印出所有学生信息，包括ID、姓名和成绩。

3. `add_student(student *head)`：向链表末尾添加一个学生节点，并要求用户输入该学生的ID、姓名和成绩。

4. `delete_student(student *head)`：根据用户输入的学生ID删除链表中对应的学生节点。

5. `search_student(student *head)`：根据用户输入的学生ID查找链表中对应的学生节点，并打印出该学生的ID、姓名和成绩。

你可以根据这个程序的框架，在Begin-End之间进一步编写代码，实现一个基于链表的学生信息管理系统。