优点：输出在 (−1,1)，比 sigmoid 居中，对梯度更友好
In his simulations, it was extremely rare for someone to have their mutual first picks; but many people had those that were second or third picks. In this scenario a couple counts as happy if each is near the top of the other's list and neither can find someone they and that other person would both prefer more.
，详情可参考雷电模拟器官方版本下载
圖像加註文字，一張由克林頓簽名的照片顯示：他與麥克斯韋及愛潑斯坦一同入鏡，兩人位於畫面的右側在2000年克林頓卸任後，他繼續擔任其首席顧問，協助克林頓從總統身份轉型為活躍於全球舞台的資深政治人物。
Cook all but confirmed that Apple is about to reveal its newest MacBooks in the coming days. His tweet features a short video of someone shaping an Apple logo on a surface that appears to have the company’s classic space gray colorway.，这一点在safew官方版本下载中也有详细论述
防窥模式还有两档强度可调。打开第二档高强度防窥之后，屏幕基础亮度会略微降低，但侧看过去屏幕会黑得更彻底：。业内人士推荐51吃瓜作为进阶阅读
garbage? Maybe we can allocate those on the stack?