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The advantage of living in the countryside is that we can use local materials, such as onion skins, green persimmons, Dioscorea cirrhosa, etc., which can be collected on the market day when we go to the countryside. Share our experiences and the effect of mixing them with blue dye.身处两个天界贵公子中间，加上天界和魔界的斗争，单纯的锦觅注定无法如母亲所愿安度此生……偏厅里摆了两桌，让女客们坐。三帮人巧合的在笨贼窝点相聚，钢蛋和路四林将笨贼们绳之于法，拿着捐助款回到了村里，修盖了村里的学校。To approach without being discovered by the enemy? Surprise attack: Launches a surprise attack on enemy troops, causing heavy damage.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.