From 30682cc90e130b7f360f6ee2501375f4a029864c Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E6=9D=A8=E7=81=BF?= <2719448963@QQ.com>
Date: Tue, 17 May 2022 23:36:42 +0800
Subject: [PATCH] 1

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 "\346\235\250\347\201\277/202205177.md.txt" | 129 ++++++++++++++++++++
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 create mode 100644 "\346\235\250\347\201\277/202205177.md.txt"

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+```php
+
+// 1、写一段代码，定义一个汽车类，有品牌与价格两种属性。并为类实例化对象，为对象的属性赋值并引用。
+class Car{
+    private $pp; //品牌
+    private $jg; //价格
+
+    /**
+     * @return mixed
+     */
+    public function getPp()
+    {
+        return $this->pp;
+    }
+
+    /**
+     * @param mixed $pp
+     */
+    public function setPp($pp): void
+    {
+        $this->pp = $pp;
+    }
+
+    /**
+     * @return mixed
+     */
+    public function getJg()
+    {
+        return $this->jg;
+    }
+
+    /**
+     * @param mixed $jg
+     */
+    public function setJg($jg): void
+    {
+        $this->jg = $jg;
+    }
+
+    function __construct($pp,$jg)
+    {
+        $this->pp = $pp;
+        $this->jg = $jg;
+    }
+    function __destruct(){
+        echo "哈哈哈";
+    }
+
+    function run(){
+        echo $this->pp."真厉害";
+    }
+}
+
+$aa = new Car('林肯','8888888');
+$aa->run();
+```
+
+```php
+// 2、在上例的基础上为汽车类定义一个子类——跑车类。为子类实例化对象并访问父类的属性。
+class Runcar extends Car{
+    function zuowei(){
+        echo $this->getPp()."有冰箱";
+    }
+
+    function run(){
+//        parent::run();
+       echo $this->getPp()."跑的很快,价格也就".$this->getJg();
+    }
+}
+
+$a = new Runcar('奔驰大G','8888888');
+$a->zuowei();
+echo "<br>";
+$a->run();
+echo "<br>"
+```
+
+```php
+// 3、定义一个类，分别定义3个公共的属性和方法，3个受保护的属性和方法，3个私有属性和方法。
+class demo01{
+//公共的属性
+public $a;
+public $b;
+public $c;
+  
+public function aa(){
+    
+}
+public function bb(){
+    
+}
+public function cc(){
+    
+}
+    
+//受保护的属性
+protected $g;
+protected $t;
+protected $r;
+protected function gg(){
+    
+}
+protected function tt(){
+    
+}
+protected function rr(){
+    
+}
+    
+//私有的属性
+private $p;
+private $o;
+private $k;
+private function pp(){
+    
+}
+private function oo(){
+    
+}
+private function kk(){
+    
+}
+    
+}
+```
+
+```php
+```
+
-- 
Gitee