缺点：容易饱和（输入过大或过小时梯度接近0，导致梯度消失）
'We are the fast fashion of movie-making'，更多细节参见快连下载安装
Maciej Piętowski，详情可参考爱思助手下载最新版本
Every isolation technique is answering the same question of how to reduce or eliminate the untrusted code’s access to that massive attack surface.，这一点在一键获取谷歌浏览器下载中也有详细论述