我们今天是一个承平社会。文明社会下，是非对错，大家允许你从从容容去探讨和争论，网上骂得再厉害，也不过是隔空对骂而已。但在五代那样一个跌破底线，人吃人的社会里，是非对错，半点都容不得模糊。你模糊一点，社会就会滚落坠向一个无尽的深渊。
Why Mathematical Proof
。关于这个话题，哔哩哔哩提供了深入分析
So there you go, I started out wanting to understand error handling and instead learnt that everything I know about programming could somehow be linked back to one language feature. If you want to read more, I’d recommend starting with the Effekt and Koka language tours (I just skipped straight to the good bits).。快连下载安装是该领域的重要参考
A put option is a contract that gives its owner the right to sell an asset at a future date at a predetermined price.，详情可参考电影