关键词1：保险丝、电闸跳闸、输入密码错误3次则在指定的时间之内禁止登录
关键词2：保护性架构、防御性代码、软件可靠性
实现：https://github.com/fecktty/Circuit_Breaker
参考：
http://thatextramile.be/blog/2008/05/the-circuit-breaker
https://en.wikipedia.org/wiki/Circuit_breaker_design_pattern
http://www.lybecker.com/blog/2013/08/07/automatic-retry-and-circuit-breaker-made-easy/
http://martinfowler.com/bliki/CircuitBreaker.html