The two most important days in your life are the day you are born and the day you find out why. -- Mark Twain 转自 Jaminzzhang的博客“你是谁?从哪里来?到哪里去?”,这三个富有哲学气息的问题,是每一个人在不断解答的问题.我们Code,Build,Run,一个活生生的App跃然方寸屏上,这一切是如何发生的?从用户点击App到执行main函数这短短的瞬间发生了多少事呢?探寻App…