From 46a2d5e65bb61475dc2fb143e8125f16ef3fd0a0 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E4=BB=98=E7=A8=8B=E7=95=85?= <2029006014@qq.com>
Date: Tue, 17 May 2022 19:27:29 +0800
Subject: [PATCH] =?UTF-8?q?=E6=8F=90=E4=BA=A4?=
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Content-Type: text/plain; charset=UTF-8
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---
 .../20220517\344\275\234\344\270\232.md"      | 149 ++++++++++++++++++
 1 file changed, 149 insertions(+)
 create mode 100644 "\344\273\230\347\250\213\347\225\205/20220517\344\275\234\344\270\232.md"

diff --git "a/\344\273\230\347\250\213\347\225\205/20220517\344\275\234\344\270\232.md" "b/\344\273\230\347\250\213\347\225\205/20220517\344\275\234\344\270\232.md"
new file mode 100644
index 0000000..d8fbd89
--- /dev/null
+++ "b/\344\273\230\347\250\213\347\225\205/20220517\344\275\234\344\270\232.md"
@@ -0,0 +1,149 @@
+
+
+```
+<?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。
+//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。
+
+
+//父类
+class car{
+    private $brand;
+    private $price;
+
+    function __construct($brand,$price)
+    {
+        $this->brand=$brand;
+        $this->price=$price;
+    }
+    function show(){
+        echo "品牌".$this->brand."<br>价格为".$this->price;
+    }
+
+    /**
+     * @return mixed
+     */
+    public function getBrand()
+    {
+        return $this->brand;
+    }
+
+    /**
+     * @param mixed $brand
+     */
+    public function setBrand($brand): void
+    {
+        $this->brand = $brand;
+    }
+
+    /**
+     * @param mixed $price
+     * @return car
+     */
+    public function setPrice($price)
+    {
+        $this->price = $price;
+        return $this;
+    }
+
+    /**
+     * @return mixed
+     */
+    public function getPrice()
+    {
+        return $this->price;
+    }
+
+}
+$a=new car("幻影",9999999999);
+$a->show();
+
+//子类
+class sportscar extends car{
+    function __construct($brand, $price)
+    {
+        parent::__construct($brand, $price);
+    }
+
+    function run()
+    {
+       echo "名为".parent::getBrand()."的跑车，它车速超越所有车辆，这台超跑的价格为".parent::getPrice();
+    }
+
+
+}
+$b=new sportscar("法拉利",19000000);
+$b->run();
+
+
+//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 lei{
+    var $a;
+    var $b;
+    var $c;
+    protected $d;
+    protected $e;
+    protected $f;
+    private $g;
+    private $h;
+    private $i;
+    /**
+ * @return mixed
+ */public function getG()
+{
+    return $this->g;
+}/**
+ * @param mixed $g
+ */public function setG($g): void
+{
+    $this->g = $g;
+}/**
+ * @return mixed
+ */public function getH()
+{
+    return $this->h;
+}/**
+ * @param mixed $h
+ */public function setH($h): void
+{
+    $this->h = $h;
+}/**
+ * @return mixed
+ */public function getI()
+{
+    return $this->i;
+}/**
+ * @param mixed $i
+ */public function setI($i): void
+{
+    $this->i = $i;
+}
+    function a(){
+
+    }
+    function b(){
+
+    }
+    function c(){
+
+    }
+    protected function d(){
+
+    }
+    protected function e(){
+
+    }
+    protected function f(){
+
+    }
+    private function g(){
+
+    }
+    private function h(){
+
+    }
+    private function i(){
+
+    }
+}
+```
\ No newline at end of file
-- 
Gitee