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?"
Note: Firewall is used by default in centos7. If you want to save the rules with the above command, you need to install iptables-services. Please review the above for the specific configuration process.
电视动画《Hundred 百武装战记》改编自日本轻小说家箕崎准原作的同名轻小说。在2015年5月10日举办的“GA文库10周年ANNIVERSARY FESTA！”上发表，发表了《Hundred 百武装战记》动画化和广播剧CD化的决定 。
总是把事情搞糟的笨蛋相原琴子（aom饰）和学园第一的天才美少年入江直树（mike饰）在同一屋檐下的爱情故事。
One problem with the factory method pattern is that the creation of the class depends on the factory class, that is to say, if you want to expand the program, you must modify the factory class, which violates the closure principle. Therefore, from the design point of view, there are certain problems, how to solve them? We use the abstract factory mode to create multiple factory classes, so that once new functions need to be added, we can directly add new factory classes without modifying the previous code. Because the abstract factory is not very easy to understand, let's look at the diagram first, and then it is easier to understand with the code.
After the ViewGroup receives the MotionEvent, it distributes the event according to the event distribution mechanism.
故事发生在一个偏远沙漠中的矿业小镇。殖民超级大国为了消灭澳洲原住民（澳大利亚原住民和托雷斯海峡岛民），在1788年把最后一个吸血鬼据点中的一族，从英国运到了澳大利亚。这些吸血鬼为了躲避阳光，潜伏在小镇四周的地下矿井和隧道中，一直到了今天。这些殖民者的数量在增加，饥饿感也越来越强烈，战争即将来临。
27年前,中国青年姚浩谦在新加坡街头救下弱智清纯少女夏菲菲,两人相恋.浩谦回国后,欣欣搬家,两人失去联系.后浩谦奉父母之命结婚,菲菲则生下平安,独立抚养他长大.27年后,平安成为游泳选手,偕欣欣回中国参加泳赛,计划与女友周语晨结婚.不料语晨考虑现实,与平安渐行渐远,平安也因腿伤退出泳坛.他历经挫折打击,仍以坚毅不拔的精神,愈挫愈勇,成为一位优秀厨师并展现惊人厨艺.平安偶然结识了勤奋向上的女孩李若愚,若愚家因经营饺子厂倒闭,生活陷入困境,但家人情感却更加凝聚,同甘共苦,坚信能化危机为转机.若愚勇敢担起偿债重任,父女情深,令人动容.平安与若愚二人历经种种波折磨难,终于确认彼此情意,携手同心面对挑战,勇敢走向未来.
"Yes, Common carnivores, Whether it's a dog, Wolf, or the dog teeth of lion and tiger, They are all tapered sections, With a tip in the front, But this kind of thing is different, All of their teeth are the same, All of them are inverted triangles, And very thin, Both sides are like knives, It was all 'open-edged'. It was very sharp and very hard. When I pried its mouth with a dagger at that time, after priing it open, I could find many thin but obvious scratches on the blade of the dagger in the face of the sun. The dagger I used was made of steel. It was really surprising to me that the teeth could leave such marks on it. "Zhao Mingkai said.
男人说了句公道话：你不懂，当官的虽然看着风光，没准哪天就被皇帝抄家杀头，这是难免的。
《百战天龙》讲述20多岁的MacGyver被招入一个隐秘的部门，剧中会解释他是如何学到一身如何解決难题的不同技能。据悉，《百战天龙第五季》已经被正式预定，《百战天龙第五季》除了原班人马到来以外，剧中有可能会加入一位神秘角色，剧情方面将继续延续上一季的结尾展开。
Jack Reacher在小说中曾经是美国陆军的军警，离开美军后他以调查员身份接手调查一些可疑或有危险性的案件。
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小泽裕美（樱井日奈子）从小接受祖母的严格管教，憧憬普通高中生生活的她，也暗恋着学生会长进藤，此事被祖母知道后，她被锁入了储物室，却意外发现一座梳妆台，使得她变为一个人格完全不同的不良少女。
花枝与马友日久生情，但令马友昔日情人苏眉（滕丽名 饰）再次出现了。而花枝也认识了当年与马友共同学艺的赐新（马德钟 饰），能力与信心十足的赐新在厨艺的地位斐然。但令赐新耿耿于怀的是天才厨师马友，两人至此一直没有比出高低。
至于那个传说中的合围越军计划更成了无稽之谈……就在汉军一片愁云惨淡的时候，越王尹旭也已经开始了下一步的计划，一环套一环正是越国的风格。
At present, the per capita production of municipal solid waste in China is (0.8 ~ 1.3) kg/person & dot; D, 1.1 kg/person & dot; D is the basis for design (including all the population living in the region). At present, in cities that have built incineration facilities in China, the low calorific value of domestic waste is mostly around 5000kJ/kg, and the water content is generally greater than 50%. Compared with cities in developed countries, it is characterized by low calorific value, high water content, large changes in composition, certain difficulties in garbage incineration, and low thermal efficiency of garbage incineration boilers. In terms of steam parameters, the steam parameters of waste heat boilers in waste incineration plants are usually medium temperature and medium pressure parameters (4MPa and 400 ℃).
1.? Write vulnerability program
