myarraylist.cs

来自「这是我写的并行计算的作业」· CS 代码 · 共 90 行

using System;
using System.Collections.Generic;
using System.Text;

namespace WindowsApplication1
{
    public class MyArrayList<DataType>
    {
        public MyArrayList()
        {
            datas = new DataType[defaultMaxLength];
            myCount = 0;
        }

        public MyArrayList(int maxLength)
        {
            datas = new DataType[maxLength];
            myCount = 0;
        }

        public void Add(DataType data)
        {
            lock (syncObj)
            {
                if (Count >= MaxLength)
                {
                    DataType[] newDatas = new DataType[2 * MaxLength];
                    Array.Copy(datas, newDatas, Count);
                    datas = newDatas;
                }
                datas[myCount++] = data;
            }
  
        }

        public void AddRange(DataType[] array)
        {
            if (array != null)
            {
                for (int i = 0; i < array.Length; i++)
                {
                    this.Add(array[i]);
                }
            }
        }

        public DataType[] GetArray()
        {
            lock (syncObj)
            {
                if (Count > 0)
                {
                    DataType[] array = new DataType[Count];
                    Array.Copy(datas, 0, array, 0, Count);
                    return array;
                }
                else
                {
                    return null;
                }
            }
        }

        public int Count
        {
            get
            {
                return myCount;
            }
            private set
            {

            }
        }

        public int MaxLength
        {
            get
            {
                return datas.Length;
            }
        }
        //
        private DataType[] datas;
        private int myCount;
        private const int defaultMaxLength = 20;
        private object syncObj = new object();
    }
}