生成一个图书信息管理系统的c语言课设

以下是一个简单的图书信息管理系统的C语言课设：

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

#define MAX_BOOKS 100

typedef struct {
    char title[50];
    char author[30];
    char ISBN[14];
    float price;
} Book;

void addBook(Book *books, int *numBooks);
void searchBook(Book *books, int numBooks);
void deleteBook(Book *books, int *numBooks);

int main() {
    Book books[MAX_BOOKS];
    int numBooks = 0;
    int choice;

    do {
        printf("\n\n1. Add book\n");
        printf("2. Search book\n");
        printf("3. Delete book\n");
        printf("4. Exit\n");
        printf("Enter choice: ");
        scanf("%d", &choice);

        switch (choice) {
            case 1:
                addBook(books, &numBooks);
                break;
            case 2:
                searchBook(books, numBooks);
                break;
            case 3:
                deleteBook(books, &numBooks);
                break;
            case 4:
                printf("Exiting program...");
                break;
            default:
                printf("Invalid choice. Please try again.");
                break;
        }
    } while (choice != 4);

    return 0;
}

void addBook(Book *books, int *numBooks) {
    if (*numBooks == MAX_BOOKS) {
        printf("Maximum number of books reached.");
        return;
    }

    Book newBook;

    printf("\nEnter book title: ");
    scanf(" %[^\n]%*c", newBook.title);
    printf("Enter author name: ");
    scanf(" %[^\n]%*c", newBook.author);
    printf("Enter ISBN: ");
    scanf(" %s", newBook.ISBN);
    printf("Enter price: ");
    scanf("%f", &newBook.price);

    books[*numBooks] = newBook;
    (*numBooks)++;

    printf("\nBook added successfully.");
}

void searchBook(Book *books, int numBooks) {
    char search[50];
    int found = 0;

    printf("\nEnter search query: ");
    scanf(" %[^\n]%*c", search);

    for (int i = 0; i < numBooks; i++) {
        if (strstr(books[i].title, search) != NULL ||
            strstr(books[i].author, search) != NULL ||
            strstr(books[i].ISBN, search) != NULL) {
            printf("\nBook found:\n");
            printf("Title: %s\n", books[i].title);
            printf("Author: %s\n", books[i].author);
            printf("ISBN: %s\n", books[i].ISBN);
            printf("Price: $%.2f\n", books[i].price);
            found = 1;
        }
    }

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

void deleteBook(Book *books, int *numBooks) {
    char search[50];
    int found = 0;

    printf("\nEnter title of book to delete: ");
    scanf(" %[^\n]%*c", search);

    for (int i = 0; i < *numBooks; i++) {
        if (strcmp(books[i].title, search) == 0) {
            for (int j = i; j < *numBooks - 1; j++) {
                books[j] = books[j+1];
            }
            (*numBooks)--;
            printf("\nBook deleted successfully.");
            found = 1;
            break;
        }
    }

    if (!found) {
        printf("Book not found.");
    }
}

这个程序允许用户添加、搜索和删除图书信息。它使用一个结构体数组来存储图书信息，每个结构体包含书名、作者、ISBN和价格。在添加图书时，用户需要输入这些详细信息。在搜索图书时，用户可以输入任何查询字符串，并且程序将搜索所有图书的书名、作者和ISBN。在删除图书时，用户需要输入书名并确认删除。如果找到了匹配的书，程序将删除它并将数组中的其他书向前移动。否则，程序将输出一个错误消息。

请注意，这只是一个简单的示例程序，没有涵盖所有可能的错误处理。在实际应用中，您需要更多的错误处理和更复杂的功能来使您的程序更加稳健和有用。