diff --git "a/20220517-php\346\226\271\346\263\225.md" "b/20220517-php\346\226\271\346\263\225.md"
deleted file mode 100644
index bf446bbd3af3a6fd48e58f75aba0bd47623900a9..0000000000000000000000000000000000000000
--- "a/20220517-php\346\226\271\346\263\225.md"
+++ /dev/null
@@ -1,176 +0,0 @@
-```php
-brand=$brand;
- $this->price=$price;
-
- }
-
- /**
- * @return mixed
- */
- public function getBrand()
- {
- return $this->brand;
- }
-
- /**
- * @param mixed $brand
- */
- public function setBrand($brand)
- {
- $this->brand = $brand;
- }
-
- /**
- * @return mixed
- */
- public function getPrice()
- {
- return $this->price;
- }
-
- /**
- * @param mixed $price
- */
- public function setPrice($price)
- {
- $this->price = $price;
- }
-
- function show(){
- echo "这辆汽车的牌子是：".$this->brand."它的价格为：".$this->price;
- }
-
-}
-
-$a=new Car("大众","39999");
-$a->show();
-
-echo "
";
-//2、在上例的基础上为汽车类定义一个子类——跑车类。为子类实例化对象并访问父类的属性。
-
-class SportsCar extends Car {
-
- function __construct($brand, $price)
- {
- parent::__construct($brand, $price);
- }
-
- function cool(){
- echo "它看来非常的酷";
- }
-
-}
-
-$b = new Sportscar("劳斯莱斯","9000000");
-echo "这辆汽车的牌子是：".$this->brand."它的价格为：".$this->price;
-$b->cool();
-echo "
";
-/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 A{
-
-//公共的
-public $name;
-public $age;
-public $sex;
- function eat(){
- echo "吃饭";
- }
-
- function sleep(){
- echo "睡觉";
- }
-
- function skill(){//技能
- echo "手撕鬼子";
- }
-//受保护的
-protected $height;//身高
-protected $weight;//体重
-protected $address;//地址
- protected function face(){
- echo "人脸识别";
- }
- protected function short(){
- echo "验证码";
- }
- protected function information(){
- echo "填写身份证信息";
- }
-
-//私有的
-private $grade;//成绩
-private $classname;//班级
-private $id;//学号
- /**
- * @return mixed
- */
- public function getGrade()
- {
- return $this->grade;
- }
-
- /**
- * @param mixed $grade
- */
- public function setGrade($grade): void
- {
- $this->grade = $grade;
- }
-
- /**
- * @return mixed
- */
- public function getClassname()
- {
- return $this->classname;
- }
-
- /**
- * @param mixed $classname
- */
- public function setClassnamel($classname): void
- {
- $this->classname = $classname;
- }
-
- /**
- * @return mixed
- */
- public function getId()
- {
- return $this->id;
- }
-
- /**
- * @param mixed $id
- */
- public function setId($id): void
- {
- $this->id = $id;
- }
-
- private function money{
- echo "会花钱";
- }
- private function book{
- echo "会看书";
- }
- private function attendclass{
- echo "会上专业课";
- }
-
-}
-
-```
-
-
-
diff --git "a/\351\231\210\345\207\214\350\212\235/20220518-php\344\270\212\344\274\240\346\226\207\344\273\266.php" "b/\351\231\210\345\207\214\350\212\235/20220518-php\344\270\212\344\274\240\346\226\207\344\273\266.php"
new file mode 100644
index 0000000000000000000000000000000000000000..b9c972ad831d0866bd92507061acd60bac4ea250
--- /dev/null
+++ "b/\351\231\210\345\207\214\350\212\235/20220518-php\344\270\212\344\274\240\346\226\207\344\273\266.php"
@@ -0,0 +1,42 @@
+
+
+
+
+ ϴļ
+
+
+
+
+
+
+size){
+ echo "
";
+ echo "ϴļ̫";
+ echo "
";
+ }else{
+ echo "
";
+ echo "ļϴɹ";
+ echo "
";
+ }
+}
+$str=array("pdf","word");
+$name=$_FILES['files']['name'];
+$nameArr =explode(".",$name);
+$nameLast =end($nameArr);
+$result=in_array($nameLast,$str);
+if (!$result){
+ echo "ļϴ";
+}else{
+ echo "ļϴ";
+}
\ No newline at end of file