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.
Cruz seems to have a clearer idea of his future path than his siblings, at least. Romeo, 23, tried to follow his father into football and modelling, while Brooklyn, 26, has had stabs at careers in photography and cooking.，详情可参考51吃瓜
siftDown(arr, n, largest); // 递归下沉，这一点在服务器推荐中也有详细论述
composefs on / type overlay (ro,relatime,seclabel,lowerdir+=/run/ostree/.private/cfsroot-lower,datadir+=/sysroot/ostree/repo/objects,redirect_dir=on,metacopy=on)