His picture includes Earth, Mercury, Venus, Jupiter, Saturn, Uranus and Neptune, as well as the Moon.
Within Python caching picks only，这一点在Line官方版本下载中也有详细论述
���f�B�A�ꗗ | ����SNS | �L���ē� | ���₢���킹 | �v���C�o�V�[�|���V�[ | RSS | �^�c���� | �̗p���� | ������，这一点在51吃瓜中也有详细论述
优点：输出在 (−1,1)，比 sigmoid 居中，对梯度更友好，推荐阅读爱思助手下载最新版本获取更多信息