利用顺序表编写素数，用c++

//单链表的c++模板
#include <iostream.h>

template <class T>
class Node
{
public:
    T data;
    Node<T> * next;
};

template <class T>
class LinkList
{
public:
     LinkList( ) ;                    //无参构造函数
     LinkList(T a[ ], int n);    //有参构造函数  
     ~LinkList( ){}                  //析构函数
     int Length( );                 //求表长
     T Get(int const i);                    //返回指定位置元素
     Node<T>* Locate(T const x );      //返回指定元素地址
     void Insert(int i, T x){}   //指定位置插入元素
     T Delete(int i){}               //删除指定位置元素
private:   
      Node <T>  *first;              
};

template <class T>
Node<T> * LinkList<T>::Locate( T const x )
{
    Node<T> * temp = first;
    while( x != temp->data )
    {
        temp = temp->next;
    }

    return temp;
}

template <class T>
T LinkList<T>::Get(int const i)
{
    int count = 1;
    Node<T> *temp = first;
    while( i != count )
    {
        temp = temp->next;
        ++count;
    }

    return temp->data;
}

template <class T>
int LinkList<T> ::Length()
{
    int count = 0;
    Node<T> *temp = first;
    while( 0xcccccccc != (const unsigned int) temp )
    {
        temp = temp->next;
        ++count;
    }

    return count;
}

template <class T>
LinkList<T> :: LinkList()
{
    first = NULL;
}

template <class T>
LinkList<T> :: LinkList( T a[], int n)
{
    LinkList();
    Node<T> *temp = NULL;
    while( 0 != n )
    {
        temp = new Node<T>;
        temp->data = a[n-1];
        temp->next = first;
        first = temp;
        --n;
    }   
}


int main()
{
    int a[] = {1, 2, 3, 5, 7, 11, 13};
    LinkList<int> instance(  a, 7 );
    cout << instance.Get( 5 ) << endl;
    cout << instance.Locate( 5 ) << endl;

    cout << "The length is :" << instance.Length() << endl;
    return 0;
}