Maid

最后一个栗子中的Draft的类型不是int而应该标注为ArticleState吧

> N 次重试次之，如果下游的失败率是 x%，失败率实际是(1-x)N https://github.com/xitu/gold-miner/pull/9403/files#diff-56b9449f073c9f993f63313d6d979f3855d262be8e3159d697b92a5464801e06R15 这句话没看懂，失败率不应该是x^N吗，第一次重试失败率是x，第二次的失败率就是x*x=x^2，难道不是这么算吗。 如果按照文章所说失败率为(1-x)N，那么下游失败率x=100%时，重试N次的失败率反而是0了？？？

I think it needs to provide an additional delete method that removes attributes from Redis, in order to provide users with their own choice.