59 lines
1.5 KiB
C++
59 lines
1.5 KiB
C++
// 创建一个名为 Book 的类，具有成员变量 title、author 和 year，以及成员函数 void displayInfo() ，用于显示图书的信息。 创建Book类的数组，至少存放5本书，并设计全局函数，实现Book对象按year从大到小排序，并显示排序后信息。
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#include <iostream>
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using namespace std;
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class Book
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{
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public:
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string title, author;
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int year;
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// 使用 const 加 & 引用，避免不必要的拷贝
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void init(const string &title, const string &author, int year)
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{
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this->title = title;
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this->author = author;
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this->year = year;
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}
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void displayinfo()
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{
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cout << "书名: " << this->title << " , 作者: " << this->author << " , 出版年份: " << this->year << endl;
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}
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};
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void sortAndShow(Book book[], int n)
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{
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int i = 0;
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for (; i < n; i++)
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{
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for (int j = 0; j < n - i - 1; j++)
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{
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if (book[j].year < book[j + 1].year)
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{
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Book tmp = book[j];
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book[j] = book[j + 1];
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book[j + 1] = tmp;
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}
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}
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}
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for (i = 0; i < n; i++)
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{
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book[i].displayinfo();
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}
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}
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int main()
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{
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Book books[5];
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books[0].init("数学", "张三", 1998);
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books[1].init("语文", "李四", 2009);
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books[2].init("英语", "王五", 1987);
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books[3].init("物理", "赵六", 2008);
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books[4].init("化学", "郑七", 1982);
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sortAndShow(books, 5);
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return 0;
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}
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