C# 泛型自定义集合-蒲公英云

C# 泛型自定义集合

我就是我 2022-06-06 03:45 310阅读 0赞

一.原型

public  class InList { 
        int[] arr = new int[10];
        int index = 0;
        public void Add(int param)
        {
            if (index >= arr.Length)
            {
                int[] tmp = new int[arr.Length * 2];
                arr.CopyTo(tmp, 0);
                arr = tmp;
            }
            arr[index] = param;
            index++;
        }
        public int this[int index]
        {
            get
            {
                if (index >= arr.Length)
                {
                    throw new Exception("索引越界");
                }
                return arr[index];
            }
        }
    }

二.泛型自定义集合

/// <summary>
    /// 自定义泛型类集合
    /// </summary>
    /// <typeparam name="T"></typeparam>
    public class MyList<T>
    {
        T[] arr = new T[10];
        int index = 0;
        public void Add(T param)
        {
            if (index >= arr.Length)
            {
                T[] tmp = new T[arr.Length * 2];
                arr.CopyTo(tmp, 0);
                arr = tmp;
            }
            arr[index] = param;
            index++;
        }
        public T this[int index]
        {
            get
            {
                if (index >= arr.Length)
                {
                    throw new Exception("索引越界");
                }
                return arr[index];
            }
        }
    }

调用

class Program { 
        static void Main(string[] args)
        {
            //InList ilist = new InList();
            //ilist.Add(1);
            //ilist.Add(3);
            //ilist.Add(4);
            //ilist.Add(7);
            //Console.WriteLine(ilist[3]);
            //Console.ReadKey();
            MyList<int> ilist = new MyList<int>();
            ilist.Add(1);
            MyList<string> sList = new MyList<string>();
            sList.Add("1");
            //MyList1.MyList`1[System.String]
            Console.WriteLine(sList.ToString());
            Console.ReadKey();
        }
    }