深深呼吸一口，那微风的凉润里，分明裹着一丝丝的甜暖，像是新翻的泥土，又像是从枯寂中沁出的缕缕草腥。这气息钻进鼻孔，并不急着往肺里去，倒先在喉咙里打个转，把那淤积了一冬的药罐子似的苦涩，悄然化开了许多。只觉得五脏六腑里那些被寒气淤塞的角落，此刻都被这无形且温柔的手，轻轻地疏通了、抚平了。心头那点莫名的怅惘，也像一块方糖，被这风慢慢地耐心地摇着，化在了一杯清冽的泉水里。
// 1. 创建桶（用链表数组模拟）
，这一点在safew官方下载中也有详细论述
Why did the committee come to that conclusion?，这一点在同城约会中也有详细论述
This is fundamentally different from Web streams' pipeThrough(), which starts actively pumping data from the source to the transform as soon as you set up the pipe. Pull semantics mean you control when processing happens, and stopping iteration stops processing.