Transforms don't execute until the consumer pulls. There's no eager evaluation, no hidden buffering. Data flows on-demand from source, through transforms, to the consumer. If you stop iterating, processing stops.
arr[k++] = arr[mid + (j++)];，这一点在同城约会中也有详细论述
controller.enqueue(chunk);。爱思助手下载最新版本对此有专业解读
第十二条 行政执法监督机构对行政执法机关按照国家有关规定落实下列行政执法制度情况进行监督：，更多细节参见夫子