请你用c++写一个图书管理系统

好的，那么你可以参考以下的代码来编写你的图书管理系统。这是一个简单的例子，它可以帮助你了解如何使用 C 语言编写一个图书管理系统。

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

#define MAX_BOOKS 100

struct Book {
  char title[100];
  char author[50];
  int pages;
  int year;
};

struct Library {
  struct Book books[MAX_BOOKS];
  int num_books;
};

void print_book(struct Book* book) {
  printf("书名：%s\n", book->title);
  printf("作者：%s\n", book->author);
  printf("页数：%d\n", book->pages);
  printf("出版年份：%d\n", book->year);
}

int main() {
  struct Library library;
  library.num_books = 0;

  while (1) {
    printf("1. 添加图书\n");
    printf("2. 查询图书\n");
    printf("3. 退出\n");

    int choice;
    scanf("%d", &choice);

    if (choice == 1) {
      if (library.num_books == MAX_BOOKS) {
        printf("图书馆已满！\n");
      } else {
        printf("请输入图书信息：\n");
        printf("书名：");
        scanf("%s", library.books[library.num_books].title);
        printf("作者：");
        scanf("%s", library.books[library.num_books].author);
        printf("页数：");
        scanf("%d", &library.books[library.num_books].pages);
        printf("出版年份：");
        scanf("%d", &library.books[library.num_books].year);
        library.num_books++;
      }
    } else if (choice == 2) {
      printf("请输入要查询的书名：");
      char title[100];
      scanf("%s", title);
      int found = 0;
      for (int i = 0; i < library.num_books; i++) {
        if (strcmp(library.books[i].title, title) == 0) {
          print_book(&library.books[i]);
          found = 1;
          break;
        }