ADD file via upload

data.h

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+#ifndef DATA_H_INCLUDED
+#define DATA_H_INCLUDED
+
+#include <stdio.h>
+#include "sqlist.h"
+
+
+// 函数声明
+
+void print_book(void);   // 打印
+void query_book(void);   // 查询
+void add_book(void);     // 添加
+void delete_book(void);  // 删除
+void boorow_book(void);  // 借书
+void repaid_book(void);  // 还书
+
+
+void DoAddBook();    // 添加图书
+void DoFindBook();   // 查找图书
+void DoDeleteBook(); // 删除图书
+void DoPrintBook();  // 打印所有图书
+void DoRepaidBook(); // 归还图书
+void DoBoorowBook(); // 借用图书
+
+
+
+
+void repaid_book(void)  // 还书
+    {
+        printf("还书\n");
+    }
+void boorow_book(void)  // 借书
+    {
+        printf("借书\n");
+    }
+void query_book(void)   // 查询
+    {
+        printf("查书\n");
+    }
+void print_book(void)   // 打印
+    {
+        printf("打印\n");
+    }   
+void add_book(void)     // 添加
+    {
+        puts("添加");
+    }
+void delete_book(void)  // 删除
+    {
+        puts("删除");
+    }
+
+
+
+
+
+struct Book {
+    int id;        // 编号
+    string title;  // 标题
+    int number;    // 数量
+    };
+
+SqList <Book> books;
+
+    // 输入一本书的信息
+void input(Book& b)
+{
+    cout << "ID    : ";
+    cin >> b.id;
+    cin.ignore(1024, '\n'); // skip rest chars of the line
+    cout << "TITLE : ";
+    getline(cin, b.title);
+    cout << "Number : ";
+    while (1){
+        cin >> b.number;
+        if (b.number>0) break;
+        cout << "Number ERROR" << endl;
+        cout << "Input again" << endl;
+    }
+}
+
+// 打印一本书的信息
+void print(const Book& b)
+{
+    cout << "Book " << endl << endl
+         <<"**************** id: " << b.id << " ****************" << endl
+         << "**** title: 《 " << b.title << " 》****" << endl
+         << "************** Number: " << b.number << " **************" << endl << endl;
+}
+
+// 根据 id 查找图书
+// 若找到，返回元素的位序，找不到时返回 0
+int find(int id)
+{
+    
+    for (int i = 1; i <= books.length; i++)
+    {
+        if (id == books.elem[i].id){
+        return i;
+        }
+    }
+    return 0; // not found
+}
+
+
+// 添加图书
+void DoAddBook()
+{
+    Book book;
+    input(book); //输入图书
+    books.elem[books.length + 1] = book;
+    books.length++;
+    print(book);
+    cout << "*******Added********" << endl;
+}
+
+// 查找图书
+void DoFindBook()
+{
+    int id;
+    cout << "Enter book ID: ";
+    cin >> id;
+
+    Book book;
+    if (find(id) == 0)
+        cout << "Not found" << endl;
+    else
+    {
+        book = books.elem[find(id)];
+        cout << "Found" << endl;
+        cout << "************" << endl;
+        print(book);
+    }
+}
+
+// 删除图书
+void DoDeleteBook()
+{
+    int id;
+    cout << "Which book you wanna delelet?"<<endl;
+    cout << "Enter book ID: ";
+    cin >> id;
+    Book e;
+    if (find(id) == 0)
+        cout << "Not found" << endl;
+    else
+    {
+        e = books.elem[find(id)];
+        print(e);
+        for (int i = find(id); i < books.length; i++)
+        {
+            books.elem[i] = books.elem[i + 1];
+        }
+        --books.length;
+        cout << "************************" << endl;
+        cout << "Deleted" << endl;
+    }
+}
+
+// 打印所有图书
+void DoPrintBook()
+{
+    int flag = 0;
+    for (int i = 0; i < books.length; i++)
+    {
+        Book e;
+        e = books.elem[i + 1];
+        print(e);
+        flag++;
+    }
+    cout << "Total: ";
+    cout << flag;
+    cout << " books" << endl;
+}
+
+// 归还图书
+void DoRepaidBook()
+{
+    int id;
+    cout << "Which book you wanna repaid ? " << endl;
+    cin >> id;
+    cout << endl;
+    if (find(id)){
+        Book e;
+        e = books.elem[find(id)];
+        ++books.elem[find(id)].number;
+    }else{
+        DoAddBook();
+    }
+}
+    
+// 借用图书
+void DoBoorowBook()
+{
+    int id;
+    cout << "Which book you wanna boorow ? " << endl;
+    cin >> id;
+    cout << endl;
+    if (find(id)){
+    if (books.elem[find(id)].number>0) {
+        Book e;
+        e = books.elem[find(id)];
+        cout<< "*********"<< endl << "OK" << endl << "*********"<<endl;
+        --books.elem[find(id)].number;
+    }else cout << "***************************"<< endl
+    << "Book empty" << endl << "***************************" << endl;
+    }else throw "NOT FOUND THIS BOOK";
+}
+
+
+
+#endif // DATA_H_INCLUDED