function _shout();
}
class Human implements Man
{
function move()
{
echo "Defect user's movement";
}
function _shout()
{
echo "Nice to meet you";
}
}
class Robot implements Man
{
function move()
{
echo "Defect Robot's movement";
}
function _shout()
{
echo "Nice to meet you";
}
}
$n = new Human();
$n->move();
$n->_shout();
$i = new Robot();
$i->move();
$i->_shout();
//hm님 강좌 연습
