图书管理系统C语言代码

以下是一个简单的图书管理系统的C语言代码示例：

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

#define MAX_BOOKS 100

struct Book {
    char title[100];
    char author[100];
    char publisher[100];
    char ISBN[13];
};

struct BookLibrary {
    struct Book books[MAX_BOOKS];
    int count;
};

void addBook(struct BookLibrary* library) {
    if (library->count >= MAX_BOOKS) {
        printf("图书库已满，无法添加新的书籍。\n");
        return;
    }

    struct Book newBook;

    printf("请输入书名：");
    fgets(newBook.title, 100, stdin);
    newBook.title[strcspn(newBook.title, "\n")] = '\0';

    printf("请输入作者：");
    fgets(newBook.author, 100, stdin);
    newBook.author[strcspn(newBook.author, "\n")] = '\0';

    printf("请输入出版社：");
    fgets(newBook.publisher, 100, stdin);
    newBook.publisher[strcspn(newBook.publisher, "\n")] = '\0';

    printf("请输入ISBN：");
    fgets(newBook.ISBN, 13, stdin);
    newBook.ISBN[strcspn(newBook.ISBN, "\n")] = '\0';

    library->books[library->count] = newBook;
    library->count++;

    printf("书籍添加成功！\n");
}

void displayBooks(struct BookLibrary* library) {
    if (library->count == 0) {
        printf("图书库中没有任何书籍。\n");
        return;
    }

    printf("图书库中的所有书籍：\n");
    for (int i = 0; i < library->count; i++) {
        printf("书名：%s\n", library->books[i].title);
        printf("作者：%s\n", library->books[i].author);
        printf("出版社：%s\n", library->books[i].publisher);
        printf("ISBN：%s\n", library->books[i].ISBN);
        printf("\n");
    }
}

int main() {
    struct BookLibrary library;
    library.count = 0;

    int choice;

    while (1) {
        printf("欢迎使用图书管理系统\n");
        printf("1. 添加书籍\n");
        printf("2. 显示所有书籍\n");
        printf("3. 退出\n");
        printf("请输入相应的操作编号：");
        scanf("%d", &choice);
        getchar(); // 清除输入缓冲区中的换行符

        switch (choice) {
            case 1:
                addBook(&library);
                break;
            case 2:
                displayBooks(&library);
                break;
            case 3:
                printf("感谢使用图书管理系统，再见！\n");
                exit(0);
            default:
                printf("无效的操作编号，请重新输入。\n");
        }
    }

    return 0;
}

这段代码实现了一个简单的图书管理系统，用户可以选择添加书籍和显示所有书籍的功能。您可以根据需求自行扩展和修改代码。

希望对您有所帮助！