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In the above code, we use three functions, order500, order200, orderNormal to handle its own business logic, If the current own function cannot handle things, We pass it to the following function to handle it. By analogy, Until there is a function that can handle him, Otherwise, the responsibility chain mode will leave the chain directly, telling that it cannot be processed and throwing an error prompt. Although the above code can be used as the responsibility chain mode, we can see from the above code that the Order500 function depends on functions such as Order200, so there must be this function, which also violates the open-closed principle in object-oriented. Let's continue to understand writing flexible and detachable responsibility chain nodes.旁人如何解读这一章，姑姑不管，我自有理解。[Investigation] Behind the Scenes of China's Crude Oil Spot Trading: Grey Crude Oil Futures Market Not ExitingNote: The core step is actually only one step. After the host computer is connected to the computer and the driver is installed, press and hold the reset key to start the machine, and then swipe the machine through hakchi according to the prompt. It is very simple.? After the 2008 financial crisis, the United States is facing great pressure from economic recession and rising unemployment, and urgently needs to change its development momentum. At the same time, the deindustrialization and emphasis on service industry in the past 20 years have led to a decline in the international competitiveness of the U.S. Economy, and it is urgent to upgrade the industrial system. Under this background, the then Obama administration put forward a re-industrialization strategy to optimize the domestic investment environment and attract the return of domestic manufacturing industry and foreign direct investment. In the current round of re-industrialization in the United States, the industrial Internet advocated by GE and other large multinational enterprises has become a typical representative.In the process of forging rst messages, the ip address and port number of the server side are known. Attackers also need to try to obtain the ip address and port number of the client side and make the sequence of rst messages within the receiving window of the server. If the attacker and the attacker are in the same intranet, this information can be obtained through spoofing and sniffing.丁柠是一个母胎单身，直到她遇到了萧烨。命中注定的相遇，也带来了不平凡的浩劫……时间一直停留在了他们相遇的那一天，这也恰巧给了丁柠去了解和“攻略”萧烨的机会，直到时间的循环打破。