而不是动态更改模板目录，您可以修改请求并添加一个值，让您的视图知道用户是否在iphone上。然后包装render_to_response（或任何您用于创建HttpResponse对象的东西），以获取iphone版本的模板，而不是标准的html版本，如果他们使用的是iphone。

Rather than changing the template directories dynamically you could modify the request and add a value that lets your view know if the user is on an iphone or not. Then wrap render_to_response (or whatever you are using for creating HttpResponse objects) to grab the iphone version of the template instead of the standard html version if they are using an iphone.