; else
{
while (innercount ﹤ index)
{
first = first.next;
innercount++;
}
return first.data;
}
}
//在指定的索引上插入新的元素
public void InsertAtIndex(int index,T data)
{
int innercount = 1;
MyListNode first = this.firstNode;
if (index ﹥ count)
{
throw new Exception("Index out of boundary");
}
if (index == 1)
{
this.firstNode = new MyListNode(data);
this.firstNode.next = first;
}
else
{
while (innercount ﹤ index - 1)
{
first = first.next;
innercount++;
}
MyListNode newNode = new MyListNode(data);
newNode.next = first.next;
first.next = newNode;
}
this.count++;
}
//C# 泛型集合-删除指定索引上的集合元素
public void RemoveAtIndex(int index)
{
int innercount = 1;
MyListNode first = this.firstNode;
if (index ﹥ count)
{
throw new Exception("Index out of boundary");
}
if (index == 1)
{
this.firstNode = first.next;
}
else
{
while (innercount ﹤ index - 1)
{
first = first.next;
innercount++;
}
first.next = first.next.next;
}
this.count--;
}
//C# 泛型集合-删除集合中的所有元素
public void RemoveAll()
{
this.firstNode = null;
this.count = 0;
}
//为实现该集合类能用foreach进行遍历
public IEnumerator GetEnumerator()
{
MyListNode first = this.firstNode;
while (first!= null)
{
yield return first.data;
first = first.next;
}
}
//内部节点类
private class MyListNode
{
public T data { get; set; }//节点上的元素值
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