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The chairman of MDT meeting is responsible for supervising the attendance of members so as not to affect MDT work and decision-making due to frequent absence.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.该剧是讲述开朗活泼的音乐剧演员某一天突然变成飞上枝头变凤凰，嫁给了皇帝，并在皇室里和绝对权力斗争，以大王大妃杀人案为契机，摧毁了皇室并找到了真爱的故事。I hope you and I grow up together, walk slowly, and eventually see the rainbow of your life!当那个飘逸的身影一出现在视野，林聪所有的伪装都轰然崩塌，眼睁睁地看着他走到近前，双膝一软，拜倒在地，颤声道：在下西南禁军队长林聪，见过秦院长。2. Do a good job of understanding before raising. First of all, look for some information on the Internet, study hard, and understand the basic habits of crayfish. Don't just see a few shrimps and listen to others saying that it likes to eat dead chickens and rotten intestines, so it blindly starts.