return $numberA / $numberB;
}
}
////////////////////////////////////////////////////////////////
//简单运算工厂类
class OperationFactory
{
public static function createOperationObj($operation)
{
switch ($operation) {
case '+':
return new OperationAdd();
break;
case '-':
return new OperationSub();
break;
case '*':
return new OperationMul();
break;
case '/':
return new OperationDiv();
break;
}
}
}
/////////////////////////////////////////////////////////////////
//客户段代码
$operationObj = OperationFactory::createOperationObj('+');
$result = $operationObj->getResult(12, 13);
var_dump($result);
//25
