构造函数练习

新建一个类库，然后添加一个”电脑“类 ，如下：

  public  class Computer    {       public Computer() { }       public Computer(string brand,string model,double price,string color)       {           this.Brand = brand;           this.Model = model;           this.Price = price;           this.Color = color;       }       public string Brand { get; set; }       public string Model { get; set; }       public double Price { get; set; }       public string Color { get; set; }

       public string showinfo()       {           return string.Format("品牌：{0}，型号：{1}，价格：{2}，颜色：{3}", Brand, Model, Price, Color);       }    }

然后在新建一个控制台应用程序，添加下面的代码：

static void Main(string[] args)        {            List<Computer> list = GetComputer();                            Console.WriteLine("请输入你要购买的电脑信息，如：品牌，型号，价格，颜色");                string query = Console.ReadLine();                List<Computer> listquery = new List<Computer>();                foreach (Computer item in list)                {                    if(query==item.Brand)                    {                        listquery.Add(item);                    }                    else if(query==item.Model)                    {                        listquery.Add(item);                    }                    else if (query == Convert.ToString(item.Price))                    {                        listquery.Add(item);                    }                    else if(query==item.Color)                    {                        listquery.Add(item);                    }                }                Console.WriteLine("符合您的要求的电脑如下");                foreach (Computer items in listquery)                {                    Console.WriteLine(items.showinfo());                }                Console.ReadKey();                    }

        private static List<Computer> GetComputer()        {            List<Computer> listcom = new List<Computer>();            Computer comasus = new Computer("ASUS","Y系列",4230,"蓝色");            Computer comlenovo = new Computer("LENOVO", "E系列", 4230, "黑色");            Computer comlenovo1 = new Computer("LENOVO", "Y系列", 4250, "黄色");            Computer comacer = new Computer("ACER", "Y系列", 5000, "红色");            listcom.Add(comasus);            listcom.Add(comlenovo);            listcom.Add(comlenovo1);            listcom.Add(comacer);            return listcom;        }

转载于:https://www.cnblogs.com/qzc900809/archive/2013/05/31/3109498.html