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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.第1期&第2期BDにのみ収録Sourceable source2 = new SourceSub2 ();Although the above code can meet the requirements, it is not easy to expand and difficult to read. If I want one or two conditions in the future, if I want to recharge 300 yuan successfully, I can win the 150 yuan red envelope, then I have to change the code inside at this time, so the coupling between business logic and code is relatively high, and I accidentally correct the wrong code. At this time, we try to use the responsibility chain mode to transfer objects in turn to realize it.Enter the inventory selection interface as shown above, and pay attention to the contents to be checked. If it is confirmed, click Execute to enter the Inventory Query interface:可是，赵锋、李敬武等清南村出来的少年们却轰然大笑起来，一下子就冲淡了肃穆萧杀的气氛。