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After understanding the history and classification of design patterns, how should we learn design patterns? Before learning the design pattern, readers must establish a kind of consciousness, that is, the design pattern is not only a method and technology, but also an idea and a methodology. It has nothing to do with the specific language. The main purpose of learning design patterns is to establish object-oriented ideas, program to the interface as much as possible, with low coupling and high cohesion, so that the programs you design can be reused as much as possible. "Specious. Learning design patterns can better understand object-oriented ideas. Design patterns are some design skills and tricks. Don't rise to ideas and methodologies, okay?"The Adapter class inherits the Source class and implements the Targetable interface. The following is the test class:Located on the southeast coast of Jinjiang, from Yongning of Shishi to Yakou of Jinjiang, Shenzhen and Shanghai form a beautiful bay, during which the beach stretches for several kilometers, like a silver necklace inlaid between the blue sky and the blue sea. In front of the beach is a vast expanse of blue waves. The beach is golden and open, and the scenery is spectacular. The sand beach is all fine and pure sand grains, such as silver scraps, with fine quality and gentle slope, and soft sand and flat tide. The beach bed is wide, stretching and expanding. The tide overflows the beach and the sound of the waves is soft. The sea water is clean and the water temperature is moderate. It is an ideal place for beach leisure, surfing and playing and carrying out various sea beach activities. Coming from the coast, the National Shenzhen-Shanghai Seabed Ancient Forest Nature Reserve,On July 4 and 5, 2019, the summer has just begun. Although the practice has not yet begun, Mr. Sun Yimin, as the team's guiding teacher, still took pains to lead Captain Zhao Peiwei and Vice Captain Yuan Zhou. I went to Anhui Shenjian New Materials Co., Ltd. And Wuhu Tongquan Technology Co., Ltd. To have contact and communication with the leaders of the two companies in advance.6. Click "OK" in turn to exit the window.龚啸山‧好勇斗狠只有拳头才是真理　　处于前线的犯罪集团在垃圾处理厂的掩护下从贩毒、赌场、谋杀等各种生意里赚取了丰厚的利益，但是黑帮内部的运作却并不顺畅。克拉多-瑟普拉诺虽然很喜欢托尼这个侄子 ，不过他不甘心在集团里反而位居晚辈之后，他利用托尼强悍的寡母丽维亚-瑟普拉诺来达到自己的目的。被托尼抚养长大的克里斯托弗-摩尔提萨蒂对他忠心耿耿，甚至不惜为托尼挡住子弹，可是年轻的克里斯托弗生性冲动，不但经常惹毛同伙，还给整个黑帮引来了不少麻烦。而且联邦调查局也不会轻易放过能击破托尼黑帮的任何漏洞。