<?php
class pig{
//猪的属性
public $name;
public $weight;
public $color;
public $age;
//成员方法
public function addweight($a){
$weight=$weight+$a;
}
public function minusweight($a){
$weight=$weight-$a;
}
}
$pig1=new pig();
$pig1->weight=100;
$pig1->addweight(5);
echo $pig1->weight;
?>本人用的360浏览器
结果为社么是 Notice: Undefined variable: weight in D:\WWW\pig.class.php on line 10
100我想要的是输出weight是多少啊,不是应该是105吗!!!
class pig{
//猪的属性
public $name;
public $weight;
public $color;
public $age;
//成员方法
public function addweight($a){
$weight=$weight+$a;
}
public function minusweight($a){
$weight=$weight-$a;
}
}
$pig1=new pig();
$pig1->weight=100;
$pig1->addweight(5);
echo $pig1->weight;
?>本人用的360浏览器
结果为社么是 Notice: Undefined variable: weight in D:\WWW\pig.class.php on line 10
100我想要的是输出weight是多少啊,不是应该是105吗!!!
$this->weight=$weight+$a;
}
$this->weight=$this->weight+$a;
class pig{
//猪的属性
public $name;
public $weight;
public $color;
public $age;
//成员方法
public function addweight($a){
$this->weight=$this->weight+$a;
}
public function minusweight($a){
$this->weight=$this->weight-$a;
}}
$pig1=new pig();
$pig1->weight=100;
$pig1->addweight(5);
echo $pig1->weight;
?>