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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.However, it may be a trick of fate. Kang Yue lost to North Korea in the Incheon Asian Games and finished second. The other side was later proved to have taken stimulants. After winning the 2016 World Championships, Kang Yue was supposed to take part in the Rio Olympics, but in the Olympic qualifying matches, Kang Yue, who could have lifted 162 kilograms of clean and jerk, did not even lift 155 kilograms due to physical discomfort during her period and finally missed the Olympics. Now 28 years old, she is still insisting and waiting for the next opportunity.　派拉蒙为下一部[鬼影实录]系列新电影定下2021年3月19日北美档期。[鬼影实录6]的导演和卡司目前暂不得知出现在眼前。精致的视觉效果，细腻和凶暴并存的纵Method 2:In the face of death, there is no standard answer.