c语言实现某班级的图书信息管理，图书的基本信息包括书号、书名、作者、单价、数量和简介（50字内）等。源代码

好的，以下是一个简单的 C 语言程序，可以实现图书信息管理系统的基本功能。请注意，这只是一个基本的示例，您可以根据需要进行修改和扩展。

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

#define MAX_BOOKS 100
#define MAX_DESCRIPTION 50

struct Book {
    char number[20];
    char name[50];
    char author[20];
    float price;
    int quantity;
    char description[MAX_DESCRIPTION];
};

struct Book books[MAX_BOOKS];
int num_books = 0;

void add_book() {
    if (num_books == MAX_BOOKS) {
        printf("Error: the maximum number of books has been reached.\n");
        return;
    }

    struct Book new_book;
    printf("Enter the book number: ");
    scanf("%s", new_book.number);
    printf("Enter the book name: ");
    scanf("%s", new_book.name);
    printf("Enter the book author: ");
    scanf("%s", new_book.author);
    printf("Enter the book price: ");
    scanf("%f", &new_book.price);
    printf("Enter the book quantity: ");
    scanf("%d", &new_book.quantity);
    printf("Enter the book description (50 characters or less): ");
    scanf("%s", new_book.description);

    books[num_books] = new_book;
    num_books++;

    printf("The book has been added successfully.\n");
}

void search_book() {
    char keyword[50];
    printf("Enter the keyword to search: ");
    scanf("%s", keyword);

    int found = 0;
    for (int i = 0; i < num_books; i++) {
        if (strstr(books[i].name, keyword) != NULL || strstr(books[i].author, keyword) != NULL) {
            printf("Book number: %s\n", books[i].number);
            printf("Book name: %s\n", books[i].name);
            printf("Book author: %s\n", books[i].author);
            printf("Book price: %f\n", books[i].price);
            printf("Book quantity: %d\n", books[i].quantity);
            printf("Book description: %s\n", books[i].description);
            printf("\n");
            found = 1;
        }
    }

    if (!found) {
        printf("No matching books found.\n");
    }
}

void list_books() {
    if (num_books == 0) {
        printf("No books found.\n");
        return;
    }

    printf("Book list:\n");
    for (int i = 0; i < num_books; i++) {
        printf("Book number: %s\n", books[i].number);
        printf("Book name: %s\n", books[i].name);
        printf("Book author: %s\n", books[i].author);
        printf("Book price: %f\n", books[i].price);
        printf("Book quantity: %d\n", books[i].quantity);
        printf("Book description: %s\n", books[i].description);
        printf("\n");
    }
}

int main() {
    int choice;

    do {
        printf("1. Add a book\n");
        printf("2. Search for a book\n");
        printf("3. List all books\n");
        printf("4. Exit\n");
        printf("Enter your choice (1-4): ");
        scanf("%d", &choice);

        switch (choice) {
            case 1:
                add_book();
                break;
            case 2:
                search_book();
                break;
            case 3:
                list_books();
                break;
            case 4:
                printf("Exiting the program.\n");
                break;
            default:
                printf("Invalid choice. Please try again.\n");
                break;
        }
    } while (choice != 4);

    return 0;
}

这个程序使用结构体来表示每本书的信息。它提供了三个主要功能：添加新书、搜索书籍和列出所有书籍。您可以根据需要添加其他功能，如删除书籍和更新书籍信息。