abstract：<?phpclass Girl{ public function hobby(){return '逛街';}}class boy{ public function buy(Girl $girl) { return '女朋友'.$girl->hobby(); }}$girl = new
<?php
class Girl
{
public function hobby()
{
return '逛街';
}
}
class boy
{
public function buy(Girl $girl)
{
return '女朋友'.$girl->hobby();
}
}
$girl = new Girl;
$boy = new boy();
echo $boy->buy($girl);
Correcting teacher：查无此人Correction time：2019-05-06 09:32:06
Teacher's summary：完成的不错，下次把代码写整齐。继续加油。