html = self.http_client.get(url)
This is fundamentally different from Web streams' pipeThrough(), which starts actively pumping data from the source to the transform as soon as you set up the pipe. Pull semantics mean you control when processing happens, and stopping iteration stops processing.
,推荐阅读safew官方版本下载获取更多信息
use int if you have a small number of classes,
Фото: Сергей Бобылев / РИА Новости