参考网址：https://blog.csdn.net/weixin_43664254/article/details/90718789
https://blog.csdn.net/qq_33357041/article/details/54925904
https://www.jianshu.com/p/7465a1ee83e7
selenium统计网页加载时间
原文：https://www.cnblogs.com/jingzaixin/p/11811422.html
