用数组、循环、选择、字符串结构、结构体开发图书馆管理系统C语言
时间: 2023-08-09 08:11:45 浏览: 63
好的,我理解了你的问题。基于你的要求,我可以给你提供一个简单的图书馆管理系统的C语言代码框架,你可以根据需求进行修改和完善。
首先,我们需要定义两个结构体,一个表示图书信息,另一个表示读者信息。代码如下:
```c
struct Book {
char name[50]; // 书名
char author[50]; // 作者
char publisher[50]; // 出版社
int year; // 出版年份
};
struct Reader {
char name[50]; // 姓名
char id[20]; // 学号或工号
char phone[20]; // 电话号码
};
```
接下来,我们定义一个数组来保存图书信息,一个数组来保存读者信息。同时,我们定义一个变量来记录当前图书和读者的数量。代码如下:
```c
#define MAX_BOOKS 100 // 最大图书数量
#define MAX_READERS 50 // 最大读者数量
struct Book books[MAX_BOOKS]; // 图书数组
struct Reader readers[MAX_READERS]; // 读者数组
int book_count = 0; // 当前图书数量
int reader_count = 0; // 当前读者数量
```
接下来,我们需要实现几个基本的功能,包括添加图书、添加读者、借书、还书、查询图书和查询读者等。代码如下:
```c
// 添加图书
void add_book() {
if (book_count >= MAX_BOOKS) {
printf("Error: too many books.\n");
return;
}
printf("Please enter book name: ");
scanf("%s", books[book_count].name);
printf("Please enter author name: ");
scanf("%s", books[book_count].author);
printf("Please enter publisher name: ");
scanf("%s", books[book_count].publisher);
printf("Please enter publication year: ");
scanf("%d", &books[book_count].year);
book_count++;
printf("Book added successfully.\n");
}
// 添加读者
void add_reader() {
if (reader_count >= MAX_READERS) {
printf("Error: too many readers.\n");
return;
}
printf("Please enter reader name: ");
scanf("%s", readers[reader_count].name);
printf("Please enter ID: ");
scanf("%s", readers[reader_count].id);
printf("Please enter phone number: ");
scanf("%s", readers[reader_count].phone);
reader_count++;
printf("Reader added successfully.\n");
}
// 借书
void borrow_book() {
char book_name[50];
char reader_id[20];
printf("Please enter book name: ");
scanf("%s", book_name);
printf("Please enter ID: ");
scanf("%s", reader_id);
int i, j;
for (i = 0; i < book_count; i++) {
if (strcmp(book_name, books[i].name) == 0) {
break;
}
}
if (i >= book_count) {
printf("Error: book not found.\n");
return;
}
for (j = 0; j < reader_count; j++) {
if (strcmp(reader_id, readers[j].id) == 0) {
break;
}
}
if (j >= reader_count) {
printf("Error: reader not found.\n");
return;
}
printf("Book borrowed successfully.\n");
}
// 还书
void return_book() {
char book_name[50];
char reader_id[20];
printf("Please enter book name: ");
scanf("%s", book_name);
printf("Please enter ID: ");
scanf("%s", reader_id);
printf("Book returned successfully.\n");
}
// 查询图书
void search_book() {
char book_name[50];
printf("Please enter book name: ");
scanf("%s", book_name);
int i;
for (i = 0; i < book_count; i++) {
if (strcmp(book_name, books[i].name) == 0) {
printf("Book name: %s\n", books[i].name);
printf("Author name: %s\n", books[i].author);
printf("Publisher name: %s\n", books[i].publisher);
printf("Publication year: %d\n", books[i].year);
return;
}
}
printf("Error: book not found.\n");
}
// 查询读者
void search_reader() {
char reader_id[20];
printf("Please enter ID: ");
scanf("%s", reader_id);
int i;
for (i = 0; i < reader_count; i++) {
if (strcmp(reader_id, readers[i].id) == 0) {
printf("Reader name: %s\n", readers[i].name);
printf("ID: %s\n", readers[i].id);
printf("Phone number: %s\n", readers[i].phone);
return;
}
}
printf("Error: reader not found.\n");
}
```
最后,我们需要一个主函数来处理用户输入和调用相应的功能函数。代码如下:
```c
int main() {
int choice;
while (1) {
printf("Please select an option:\n");
printf("1. Add book\n");
printf("2. Add reader\n");
printf("3. Borrow book\n");
printf("4. Return book\n");
printf("5. Search book\n");
printf("6. Search reader\n");
printf("0. Exit\n");
scanf("%d", &choice);
switch (choice) {
case 1:
add_book();
break;
case 2:
add_reader();
break;
case 3:
borrow_book();
break;
case 4:
return_book();
break;
case 5:
search_book();
break;
case 6:
search_reader();
break;
case 0:
return 0;
default:
printf("Invalid option.\n");
break;
}
}
}
```
以上代码只是一个简单的框架,可以根据需求进行修改和完善。注意,在实际开发中,需要考虑更多的细节和异常情况。