static void PrintDoubleLink(DoubleLink <int> d, string text = "输出：")
{
int data = 0;
Console.Write(text);
for (int i = 0; i < d.GetLength(); i++)
{
d.GetElement(i + 1, ref data);
Console.Write(data.ToString() + " ");
}
Console.WriteLine();
}
static void TestDoubleLink()
{
//添加测试
DoubleLink <int> d = new DoubleLink <int>();
d.Add(2);
d.Add(90);
d.AddAtFirst(32);
d.Add(8);
PrintDoubleLink(d, "添加四个元素后");
Console.WriteLine();
//插入测试
PrintDoubleLink(d, "插入前：");
d.Inset(1, 88);
PrintDoubleLink(d, "一号位插入88后：");
d.Inset(5, 60);
PrintDoubleLink(d, "五号位插入60后：");
d.AddAtFirst(99);
PrintDoubleLink(d, "在头部添加99后：");
Console.WriteLine();
//删除测试
int data = 0;
PrintDoubleLink(d, "删除元素前：");
d.Delete(4, ref data);
PrintDoubleLink(d, "删除第四个元素后：");
d.Delete(1, ref data);
d.Delete(1, ref data);
d.Delete(1, ref data);
d.Delete(1, ref data);
d.Delete(1, ref data);
d.Delete(1, ref data);
d.Delete(1, ref data);
PrintDoubleLink(d, "删除完元素后：");
d.Add(30);
d.AddAtFirst(20);
PrintDoubleLink(d, "在添加两个元素后：");
Console.WriteLine();
//索引测试
d.Delete(30, ref data);
d.Inset(0, 1);
d.GetElement(0, ref data);
d.GetElement(-1, ref data);
}