C# 泛型自定义集合

我就是我 2022-06-06 03:45 231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();
            }
        }