1、websocket
参考:http://www.runoob.com/html/html5-websocket.html、 https://www.zhihu.com/question/20215561
2、浏览器的渲染引擎和JS引擎
参考:https://blog.csdn.net/BonJean/article/details/78453547、 https://github.com/zwwill/blog/issues/2
参考:http://www.runoob.com/html/html5-websocket.html、 https://www.zhihu.com/question/20215561
参考:https://blog.csdn.net/BonJean/article/details/78453547、 https://github.com/zwwill/blog/issues/2