C#基础-034 创建一个图书类，并设计书名，作者，价格，页数，创建一个图书数组

（1）写一个方法根据图书名，查询某本图书是否存在

 class Book
    {
public string Name { get; set; }
public string Author { get; set; }
public float Price { get; set; }
public int PageCount { get; set; }

public Book()
        {

        }

public Book(string name, string author, float price, int pageCount)
        {
            Name = name;
            Author = author;
            Price = price;
            PageCount = pageCount;
        }

public static bool QuaryBookByBookName(string name,Book[] books)
        {
for (int i = 0; i < books.Length; i++)
            {
if (name==books[i].Name)
                {
return true;
                }
            }
return false;
        }

main方法测试参考代码：

  static void Task03()
        {
            Book[] books = new Book[5];
            books[0] = new Book("水浒传","施耐庵",56,560);
            books[1] = new Book("C1#从入门到精通", "张三", 78, 1140);
            books[2] = new Book("浅谈C#的优与劣", "李四", 98, 540);
            books[3] = new Book("红楼梦", "曹雪芹", 42, 780);
            books[4] = new Book("C2#从入门到放弃", "王五", 2, 120);
            bool ret = Book.QuaryBookByBookName("C#从入门到精通",books);
            Console.WriteLine(ret);
ret = Book.QuaryBookByBookName("C#", books);
            Console.WriteLine(ret);
ret = Book.QuaryContainsName("C#",books);
            Console.WriteLine(ret);
        }

（2）写一个方法找出所有包含“C#”字样的图书

   public static bool QuaryContainsName(string name,Book[] books)
        {
for (int i = 0; i < books.Length; i++)
            {
//第一种方式
//if (books[i].Name.Contains(name))
//{
// return true;
//}
//第二种方式
if (IsConctains(books[i].Name,name))
                {
return true;
                }
            }
return false;
        }
//判断字符串targetStr中是否包含sourceStr，返回布尔值
static bool IsConctains(string targetStr,string sourceStr)
        {
if (targetStr.Length<sourceStr.Length)
            {
return false;
            }
for (int i = 0; i < targetStr.Length-sourceStr.Length+1; i++)
            {
for (int j = 0; j < sourceStr.Length; j++)
                {
if (sourceStr[j] != targetStr[i+j])
                    {
break;
                    }
if (j==sourceStr.Length-1)
                    {
return true;
                    }
                }
            }
return false;
        }
    }

main方法测试参考代码：

  static void Task03()
        {
            Book[] books = new Book[5];
            books[0] = new Book("水浒传","施耐庵",56,560);
            books[1] = new Book("C1#从入门到精通", "张三", 78, 1140);
            books[2] = new Book("浅谈C#的优与劣", "李四", 98, 540);
            books[3] = new Book("红楼梦", "曹雪芹", 42, 780);
            books[4] = new Book("C2#从入门到放弃", "王五", 2, 120);
bool ret = Book.QuaryContainsName("C#",books);
            Console.WriteLine(ret);
        }