在python的开发过程中如何进行单链表的实现（代码）-php手册

//节点class node{    //初始化变量,包括存储的内容 和 下一个数据的指针    public $id = 0;    public $data = '';    public $next = null;    //构造函数,设置存储内容的数据    public function __construct($id, $data)    {        $this->id = $id;                $this->data = $data;    }}//单链表   class singelLinkList{    private $header;     //链表头节点       //添加节点数据       public function addLink($id = null, $name = null)    {        $node = new node ($id, $name);                $current = $this->header;                   if (!$current) {                           $this->header = $node;             } else {                         # 链表头插             $node->next = $current;                          $this->header = $node;                                   # 链表尾插            /*# 循环，获取对象中最后一个元素            while ($current->next != null) {                $current = $current->next;            }            # 最后一个元素的next指针指向$node            $current->next = $node;*/        }    }    public function delLink($id = null, $name = null)    {        $current = $this->header;        # 循环        while ($current->next != null) {                    # 查找待删除元素 $delCurrent 的上一个元素            if ($current->next->id == $id) {                            $delCurrent = $current->next;                                   # 查找待删除元素 $delCurrent 的下一个元素                $current->next = $delCurrent->next;                                # 删除元素 $delCurrent                $delCurrent = null;                                break;            }                        $current = $current->next;        }    }}$lists = new singelLinkList();$lists->addLink(1, 'aaaaaa');$lists->addLink(2, 'bbbbbb');$lists->addLink(3, 'cccccc');$lists->addLink(4, 'dddddd');$lists->addLink(5, 'eeeeee');$lists->delLink(4);echo '<pre>'; print_r($lists);

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