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Well, now the first rule is to accept all messages from 192.168. 1.146, and the count is 0 at this time. At this moment, we will initiate a ping request from 146 to 156.杨长帆抓着徐文长死不放手，你我合力，议定一事，若成，功劳钱财对分，若不成，一切结果我担。黄豆认真问道：这是要赶我们走？凭什么？那丫头道：凭这如意楼是我家开的。Public int calculation (int num1, int num2) {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?"正是这种置诸死地而后生的情况，激发了楚国将士的士气。