Does anyone know how sites that have a real-time feed of a lot of data work? I am referring to something like a stock site, where they can tell you in real time (well, 20 minute delay mostly, but still real-time - 20 minutes as I understand it). Does anyone know how sites that have a real-tim
阅读背景：
第三方数据传递大量数据
来源：互联网
分享到：
