简而言之-是的，您可以.通常将S形函数用作隐藏层激活以确保非线性特征，并在为特定任务选择的输出中激活(取决于您要建模的内容以及所使用的成本函数)，这是一种常见的方法.

In short - yes you can. It is a common approach to use sigmoid function as a hidden layer activation to ensure nonlinear features, and activation in the output selected for a particular task (depending on what you are trying to model, and what cost function you use).