https://www.cnblogs.com/skytraveler/p/3546703.html
https://www.cnblogs.com/liangshi/archive/2011/03/07/1973525.html
https://blog.csdn.net/weixin_34014277/article/details/93205232阿里云怎么做可靠性:https://www.jianshu.com/p/c5fb0df3989a
好的测试思考:https://www.cnblogs.com/ryansunyu/p/4067463.html