JS高级——监听浏览器的返回事件

https://www.cnblogs.com/Easty/p/7820055.html

https://www.cnblogs.com/zhengyan/p/6912526.html

http://www.zhangxinxu.com/wordpress/2013/06/html5-history-api-pushstate-replacestate-ajax/

https://blog.csdn.net/zc474235918/article/details/53138553