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不看。There are five kinds of creation modes (1-5): factory method mode, abstract factory mode, singleton mode, builder mode and prototype mode.Industrial Internet mainly brings about the following trend changes: First, intelligence, which uses big data to analyze the needs of different customer groups, carries out intelligent industrial production, and produces intelligent products that can carry information, sense environment and self-detection; The second is flexibility, which not only controls the production cost in the form of mass production, but also meets the needs of users in the form of personalized products. The third is greening. Industrial Internet provides a new path choice for the development of green economy, circular economy and intensive economy.As a result, an exception occurred when newChannel was used, and a FailedChannel was returned after catch, while the outside call thought that it must be a DatagramChannel.2. For ships equipped with operational radars, consideration shall also be given to:当世界被大火吞噬时，您会去哪儿？当前所未有的大火成为家常便饭时，您又怎样继续生活下去？