C#完成Ruby的正數索引器。本站提示廣大學習愛好者:(C#完成Ruby的正數索引器)文章只能為提供參考,不一定能成為您想要的結果。以下是C#完成Ruby的正數索引器正文
C#完成Ruby的正數索引器
public class InvertibleList<T> : List<T>
{
public new T this[int index]
{
get
{
if (index >= 0) return base[index];
if (Count + index < 0)
throw new IndexOutOfRangeException();
return this[Count + index];
}
set
{
if (index >= 0)
base[index] = value;
else
{
if (Count + index < 0)
throw new IndexOutOfRangeException();
this[Count + index] = value;
}
}
}
}
應用辦法:
InvertibleList<string> list=new InvertibleList<string>
{
"1",
"2",
"3",
"4",
"5",
};
list[-2] = "asd";
list.ForEach(Console.WriteLine);
代碼很簡略,應用也很便利,願望對年夜家進修C#可以或許有所贊助