If you want to exit the iPhone while reading a novel, you can try pressing the "home" button on the iPhone screen to return to the home screen. At this time, you can close the novel application. If you're using an online reading platform such as iBooks or the iPad, you can exit the reading interface by clicking the 'exit' button on the page or closing the browser window. Please note that in some cases, such as reading some of the novels, you may need to manually exit the novel application after reading each chapter. At this time, you can find the "exit" button of the novel application on the screen and click it to exit the application.