【原创】再论：一维零基数组 - Office中国论坛/Access中国论坛

using System;
using System.Collections.Generic;
namespace ConsoleApplication8
{
internal class Program
{
private static void Main(string[] args)
{
int[] length = new int[] { 2 };
int[] startIndex = new int[] { 4 };
Array nonZeroBased = Array.CreateInstance(typeof(string), length, startIndex);
nonZeroBased.SetValue("first", 4);
nonZeroBased.SetValue("second", 5);
Console.WriteLine(nonZeroBased.GetValue(4)); // "first"
Console.WriteLine(nonZeroBased.GetValue(5)); // "second"
//转换到接口
IEnumerable<string> ieT = (IEnumerable<string>)nonZeroBased;
ICollection<string> icT = (ICollection<string>)nonZeroBased;
IList<string> icL = (IList<string>)nonZeroBased;
//!!注意，必须进行强制性转换，天知道转完后是个什么模样了
//转化为接口后，就有定义
icL.Insert(0, "test");
icL.Remove("first");
icL.RemoveAt(4);
//未处理的异常: System.InvalidCastException:
//无法将类型为“System.String[*]”的对象强制转换为类型“System.Collections.Generic.IEnumerable`1[System.String]”。
int[,] intArray = { { 1, 2 }, { 1, 2 }, { 1, 2 } };
//转换到接口
//IEnumerable<int> ieT2 = (IEnumerable<int>)intArray;
//ICollection<int> icT2 = (ICollection<int>)intArray;
//IList<int> icL2 = (IList<int>)intArray;
//!!注意，强制转换都不成
Console.ReadKey();
}
}
}

复制代码