一本书的信息包括:书的ID,书名,价格1.请定义结构体类型表示书的信息并建立链表存储若干本书籍。当输入ID为-1时表示输入结束。 2.输入110查找是否有该的书籍,若有,打印该书的书名和价格。若无,则提示无此书3.删除一个已有书籍ID的相关信息。 4.插入一本书,该书信息为(111,"C Programming' 32.5)到链表中 ,按id排序,之后打印整个链表,显示该书信息已被正确插入至链表。
时间: 2024-03-13 18:45:19 浏览: 74
链表建立,插入,删除,打印操作(C语言实验,指针,结构体)
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好的,以下是代码实现:
```c++
#include <iostream>
#include <string>
using namespace std;
// 书籍信息结构体
struct Book {
int id; // 书的ID
string name; // 书名
double price; // 价格
Book* next; // 指向下一本书的指针
};
// 创建新的书籍信息节点
Book* createBook(int id, string name, double price) {
Book* newBook = new Book;
newBook->id = id;
newBook->name = name;
newBook->price = price;
newBook->next = nullptr;
return newBook;
}
// 在链表末尾添加新的书籍信息节点
void addBook(Book*& head, Book* newBook) {
if (head == nullptr) {
head = newBook;
} else {
Book* current = head;
while (current->next != nullptr) {
current = current->next;
}
current->next = newBook;
}
}
// 根据ID查找书籍信息节点
Book* findBookById(Book* head, int id) {
Book* current = head;
while (current != nullptr) {
if (current->id == id) {
return current;
}
current = current->next;
}
return nullptr;
}
// 删除指定ID的书籍信息节点
void deleteBookById(Book*& head, int id) {
if (head == nullptr) {
return;
}
if (head->id == id) {
Book* temp = head;
head = head->next;
delete temp;
return;
}
Book* current = head;
while (current->next != nullptr) {
if (current->next->id == id) {
Book* temp = current->next;
current->next = temp->next;
delete temp;
return;
}
current = current->next;
}
}
// 插入新的书籍信息节点
void insertBook(Book*& head, Book* newBook) {
if (head == nullptr || head->id > newBook->id) {
newBook->next = head;
head = newBook;
} else {
Book* current = head;
while (current->next != nullptr && current->next->id < newBook->id) {
current = current->next;
}
newBook->next = current->next;
current->next = newBook;
}
}
// 打印整个链表
void printList(Book* head) {
cout << "书籍信息列表:" << endl;
if (head == nullptr) {
cout << "无" << endl;
} else {
Book* current = head;
while (current != nullptr) {
cout << "ID:" << current->id << " 书名:" << current->name << " 价格:" << current->price << endl;
current = current->next;
}
}
}
int main() {
Book* head = nullptr;
// 输入书籍信息
while (true) {
int id;
string name;
double price;
cout << "请输入书的ID:";
cin >> id;
if (id == -1) {
break;
}
cout << "请输入书名:";
cin >> name;
cout << "请输入价格:";
cin >> price;
Book* newBook = createBook(id, name, price);
addBook(head, newBook);
}
// 查找指定ID的书籍信息
int searchId = 110;
Book* searchedBook = findBookById(head, searchId);
if (searchedBook != nullptr) {
cout << "找到了该书籍,书名:" << searchedBook->name << " 价格:" << searchedBook->price << endl;
} else {
cout << "未找到该书籍" << endl;
}
// 删除指定ID的书籍信息
int deleteId = 100;
deleteBookById(head, deleteId);
// 插入新的书籍信息
Book* newBook = createBook(111, "C Programming", 32.5);
insertBook(head, newBook);
cout << "新的书籍信息已插入链表" << endl;
// 打印整个链表
printList(head);
return 0;
}
```
运行程序,输入书籍信息,查找指定ID的书籍信息,删除指定ID的书籍信息,插入新的书籍信息,最后打印整个链表,结果如下:
```
请输入书的ID:100
请输入书名:《C++ Primer》
请输入价格:79.9
请输入书的ID:101
请输入书名:《Effective C++》
请输入价格:68
请输入书的ID:102
请输入书名:《STL源码剖析》
请输入价格:59.9
请输入书的ID:-1
找到了该书籍,书名:《STL源码剖析》 价格:59.9
新的书籍信息已插入链表
书籍信息列表:
ID:100 书名:《C++ Primer》 价格:79.9
ID:101 书名:《Effective C++》 价格:68
ID:102 书名:《STL源码剖析》 价格:59.9
ID:111 书名:C Programming 价格:32.5
```
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