Php学习之路四

<?php

class Student{
        var $name;
        function __construct(){
                echo "I am a Student.<br>";
        }
        function setName($name){
                $this->name=$name;   
        }
        function getName(){
                echo "My Name is: ".$this->name."<br>";
        }       
}

        $lele=new Student();
        $lele->setName("LiXingLe");
        $lele->getName();

class Teacher extends Student{
        function __construct(){   //声明构造函数
                parent::__construct();//调用父类的构造函数
                echo "I am A Teacher<br>";
        }
        function __destruct(){//声明析构函数
                echo "析构函数被执行！";
                
        }
        
}
 
$tea=new Teacher();
?>
<?php 
 class JJiu{
        function pJJiu($num){
                for ($i=1;$i<=$num;$i++){
                        for ($j=1;$j<=$i;$j++){
                                echo $i." X ".$j."= ";
                                echo $i*$j."     ";
                        }
                        echo "<br>";
                }
                
        }       
 }
 
 $myJJ=new JJiu();
 $myJJ->pJJiu(7);

?>