// Use it directly
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.
。WPS官方版本下载对此有专业解读
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Subscribe to our newsletter，这一点在旺商聊官方下载中也有详细论述