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php实现单链表

程序员文章站 2022-05-28 18:13:17
...
php
/**
  * 单链表
  */ 
class Demo
{
    private $id;
    public $name;
    public $next;

    public function __construct ($id = '', $name = '')
    {
        $this->id = $id;
        $this->name = $name;
    }

    static public function show ($head)
    {
        $cur = $head;
        while ($cur->next) {
            echo $cur->next->id,'###',$cur->next->name,'
'; $cur = $cur->next; } echo '
'; } //尾插法 static public function push ($head, $node) { $cur = $head; while (NULL != $cur->next) { $cur = $cur->next; } $cur->next = $node; return $head; } static public function insert($head, $node) { $cur = $head; while (NULL != $cur->next) { if ($cur->next->id > $node->id) { break; } $cur = $cur->next; } $node->next = $cur->next; $cur->next = $node; return $head; } static public function edit($head, $node) { $cur = $head; while (NULL != $cur->next) { if ($cur->next->id == $node->id) { break; } $cur = $cur->next; } $cur->next->name = $node->name; return $head; } static public function pop ($head, $node) { $cur = $head; while (NULL != $cur->next) { if ($cur->next == $node) { break; } $cur = $cur->next; } $cur->next = $node->next; return $head; } } $team = new Demo(); $node1 = new Demo(1, '唐三藏'); Demo::push($team, $node1); $node1->name = '唐僧'; Demo::show($team); // Demo::show($team); $node2 = new Demo(2, '孙悟空'); Demo::insert($team, $node2); // Demo::show($team); $node3 = new Demo(5, '白龙马'); Demo::push($team, $node3); // Demo::show($team); $node4 = new Demo(3, '猪八戒'); Demo::insert($team, $node4); // Demo::show($team); $node5 = new Demo(4, '沙和尚'); Demo::insert($team, $node5); // Demo::show($team); $node4->name = '猪悟能';//php对象传引用,所以Demo::edit没有必要 // unset($node4); // $node4 = new Demo(3, '猪悟能'); // Demo::edit($team, $node4); Demo::pop($team, $node1); Demo::show($team);

相关标签: php实现单链表