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尹旭嘿嘿一笑，没有说话。For most flower plants, the first thing to do to find a suitable partner is to attract insects that can be used as pollinators. Bright colors and charming aroma are good choices for them, which can attract insects to stay on their own flowers, stick pollen to them, and then pass it on to the flowers of other plants.Surname is a sign and symbol that indicates a person's family and blood relationship. The descendants of the same ancestor are called clans. Surnames originated from the name of the tribe or the name of the tribal leader. Its function is mainly to distinguish the descendants of different clans in the tribe and to facilitate intermarriage between different clans. Therefore, the emergence of surnames marks the change from group marriage to blood marriage and is an important milestone in the progress of human civilization.Bring the handling materials and fees (cash only) to the outlets for handling.……半个月后，战败的葡萄牙舰队驶入了马六甲港，如果这里还能称之为港的话……按照生还者所述，这里来过三批人。If I were to implement a pizza ordering system, I would definitely write the code like this, because this kind of code can be written subconsciously without consuming our brains. However, take a closer look at this code: the purpose of this method is to order pizza. However, the code for ordering pizza also needs knowledge about the production of pizza. This method must know all pizza. Worse still, if the types of pizza are to be expanded or pizza with poor sales volume are to be deleted in the future, then the code for ordering pizza will be modified. It looks very bad and should be revised. Our first step must be to separate the code for producing Pizza from the code for ordering pizza, because you should not let the code for ordering Pizza know the logic for producing pizza, but should hand over the logic for producing Pizza to a special type. In this way, we can cope with future changes-if we want to add or delete pizza, we can directly modify the producer of pizza without affecting the logic of ordering pizza.