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）
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After six agonising minutes, Jack Swigert's voice cut through the silence.。关于这个话题，同城约会提供了深入分析
Carroll's argument draws on decades of research, which he put together in his report, The Soulmate Trap, much of which distinguishes between what psychologists call "destiny beliefs" - the idea that the right relationship should feel effortless - and "growth beliefs", which focus on what partners can do to make things work.，更多细节参见safew官方下载