（一）具有批量控制网络账号、上网线路、智能终端等功能的；
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.
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John Davidson has said he was "deeply mortified if anyone considers my involuntary tics to be intentional or to carry any meaning"
Последние новости