第四十三条 有下列行为之一的，处五日以下拘留或者一千元以下罚款；情节严重的，处十日以上十五日以下拘留，可以并处一千元以下罚款：
Is Stuff Your Kindle Day the same as Amazon Kindle Unlimited?Everything you download on Stuff Your Kindle Day is yours to keep, and there's no limit on the number of books you can download. Stuff Your Kindle Day downloads don't count towards the 20 books that Amazon Kindle Unlimited subscribers can borrow at the same time.
，这一点在Line官方版本下载中也有详细论述
优点：输出在 (−1,1)，比 sigmoid 居中，对梯度更友好
Sling Season Pass