gcms

interface order{
  public function orders();
}
class zhifubao implements order{
  public function orders()
 {  // TODO: Implement orders() method.
  return "";
  }
}
class weixin implements order{
  public function orders()
 {  // TODO: Implement orders() method.
  return "";
  }
}
class hiabei implements order{
  public function orders()
 {  // TODO: Implement orders() method.
  return "";
  }
}
class gongchanglei{
  public static function zhixing($buy){
  switch ($buy){
  case"zhifubao":
  return new zhifubao();
 case "weixin":
  return new weixin();
 case "":
  return new hiabei();
  }
 }}