1. 为什么是“工作流”，不是“聊天”
这个文集的名称也颇有巧思——致敬德国诗人里尔克《给一个年轻诗人的信》，这也是乔布斯生前最喜欢的读物之一。。关于这个话题，快连下载安装提供了深入分析
The video, which has been viewed nearly 380 million times and received more than 18 million likes, was filmed by a digital camera and marked a turning point in user-generated content and ways media could be created and consumed.，更多细节参见safew官方下载
* 分区函数：将数组按pivot分成两部分
如果有想玩的东西，但是有其他小朋友占着，就引导她去询问：「可以让我想玩一下妈？」