用链表写个图书管理程序

好的，我可以帮您写一个图书管理程序。以下是一个示例代码，使用单向链表来实现图书的添加、删除和查询：

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

typedef struct book {
    char title[100];
    char author[50];
    int year;
    struct book* next;
} Book;

Book* create_book(char* title, char* author, int year) {
    Book* new_book = (Book*)malloc(sizeof(Book));
    strcpy(new_book->title, title);
    strcpy(new_book->author, author);
    new_book->year = year;
    new_book->next = NULL;
    return new_book;
}

void add_book(Book** head, char* title, char* author, int year) {
    Book* new_book = create_book(title, author, year);
    if (*head == NULL) {
        *head = new_book;
        return;
    }
    Book* current = *head;
    while (current->next != NULL) {
        current = current->next;
    }
    current->next = new_book;
}

void delete_book(Book** head, char* title) {
    Book* current = *head;
    Book* previous = NULL;
    while (current != NULL) {
        if (strcmp(current->title, title) == 0) {
            if (previous == NULL) {
                *head = current->next;
            } else {
                previous->next = current->next;
            }
            free(current);
            return;
        }
        previous = current;
        current = current->next;
    }
}

void search_books(Book* head, char* author) {
    Book* current = head;
    while (current != NULL) {
        if (strcmp(current->author, author) == 0) {
            printf("%s (%d) by %s\n", current->title, current->year, current->author);
        }
        current = current->next;
    }
}

void print_books(Book* head) {
    Book* current = head;
    while (current != NULL) {
        printf("%s (%d) by %s\n", current->title, current->year, current->author);
        current = current->next;
    }
}

int main() {
    Book* library = NULL;

    add_book(&library, "The Catcher in the Rye", "J.D. Salinger", 1951);
    add_book(&library, "To Kill a Mockingbird", "Harper Lee", 1960);
    add_book(&library, "1984", "George Orwell", 1949);
    add_book(&library, "Pride and Prejudice", "Jane Austen", 1813);

    printf("All books:\n");
    print_books(library);

    printf("\nDeleting '1984'...\n");
    delete_book(&library, "1984");

    printf("\nBooks by J.D. Salinger:\n");
    search_books(library, "J.D. Salinger");

    return 0;
}

这个程序可以添加、删除和查询图书，您可以根据需要进行修改。请问还有其他问题需要我回答吗？