Question

namespace ConsoleApplication13
{
    class Program
    {
        static void Main(string[] args)
        {
            Console.WriteLine("how many footballs would you want?");

            int amount = int.Parse(Console.ReadLine());
            List<football> ballist = new List<football>();

            for (int i = 0; i < amount; i++)
            {
                Console.WriteLine("how much should football {0} weigh?", i+1);
                int weight = int.Parse(Console.ReadLine());
                ballist.Add(new football(weight));
            }

            Console.WriteLine("amount of footballs is {0}", amount);            
            ballist.ForEach(s => Console.WriteLine(s.GetWeight()));
            Console.ReadLine();

        }
    }

    class football
    {
        private int weight = 0;

        public int GetWeight()
        {
            return weight;

        }

        public football(int weigh)
            {
            weight = weigh;
            }

    }
}

在列表中添加对象，我做得对吗？

Answer 1

一种可能的替代方法是让用户输入所有权重一次并生成列表：

  Console.WriteLine("please, input footballs' weights separated by comma");

  String input = Console.ReadLine();

  List<football> ballist = input
    .Split(',')
    .Select(item => new football(int.Parse(item)))
    .ToList();

关于Football类

的一些建议

  // We usually start classes with capital letter
  class Football {
    private int m_Weight;

    // C# is not Java, so use properties, which are more readable
    public int Weight {
      get {
        return m_Weight;
      }
      private set {
        // validate input
        if (value <= 0)
          throw new ArgumentOutOfRangeException("value"); 

        m_Weight = value;  
      }
    }

    // "weight" - let argument correspond to property
    public football(int weight) {
      Weight = weight;
    }
  }

Answer 2

添加到列表是正确的。我建议你使用属性作为权重。

    class football
    {
        public int weight { get; set; }
    }

如果你不想在get / set上有任何代码。

public int _weight;
public int weight
{
    get
    {
        //Your Code here
        return _weight;
     }
     set
     {
         //And Here
         _weight = value;
     }
}

在列表中添加对象，我做得对吗？

2 个答案: