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<?php
interface User
{
function getName();
function setName($_name);
}
interface VipUser extends User
{
function getDiscount(); //´Ë´¦Ìí¼ÓÁËÒ»¸ö³éÏóµÄ·½·¨
}
class Vip implements VipUser
{
private $name;
private $discount = 0.8; //ÕÛ¿Û±äÁ¿
function getName() {
return $this->name;
}
function setName($_name) {
$this->name = $_name;
}
function getDiscount() {
return $this->discount;
}
}
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