arr

using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Threading.Tasks; namespace Algorithm { internal class MyList { private int[] arr; private int arrCapacity = 10; private int arrSize = 0; private readonly int extendRatio = 2; public MyList() { arr = new int[arrCapacity]; } public int Size() { return arrSize; } public int Capacity() { return arrCapacity; } public int Get(int index) { if(index<0|| index >= arrSize) { throw new IndexOutOfRangeException($"索引越界，current index is: {index}"); } return arr[index]; } public void Set(int index, int num) { if (index < 0 || index >= arrSize) { throw new IndexOutOfRangeException($"索引越界，current index is: {index}"); } arr[index] = num; } public void Add(int num) { if (arrSize == arrCapacity) { ExtendCapacity(); } arr[arrSize]= num; arrSize++; } public void Insert(int index, int num) { if(index< 0 || index >= arrSize) { throw new IndexOutOfRangeException($"索引越界，current index is: {index}"); } if(arrSize == arrCapacity) { ExtendCapacity(); } for(int Count=arr.Length-1; Count >= index; Count--) { arr[Count+1] = arr[Count]; } arr[index]=num; arrSize++; } public int Remove(int index) { } } }