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Second, the main differences between the two are as follows:State mode and policy mode are like twins. They both encapsulate a series of algorithms or behaviors. Their class diagrams look almost identical, but their intentions are very different, so they are two very different modes. The policy pattern and the state pattern have in common that they both have a context, policies or state classes to which the context delegates the request to executeWe call a collection of rules that have the same functionality a table, Therefore, we can place rules with different functions in different tables for management, and IPTables has already defined four tables for us, each table corresponds to different functions, and the rules we define cannot escape the scope of these four functions. Therefore, before learning IPTables, we must first understand the function of each table.In this code, we focus on getWindow (). SuperDispatchTouchEvent (ev), which passes the click event to Window. The return value indicates whether the click event has been consumed. If all View does not consume click events, Activity calls its own onTouchEvent.Regionally, North and East China are the regions with the largest application of industrial software, accounting for about half of the country's total. Specifically, Beijing, Shanghai, Guangdong and Jiangsu are regions with strong industrial software strength, accounting for more than half of China's industrial software market.　　本片横跨四十年，由动荡的六十年代至今，把意大利多件重大历史事件化成六小时的家族史诗式电影。剧情扣人心弦，60年代佛罗伦斯大水灾，西西里人对抗黑手党，70年代都灵市的蓝领工潮，80年代米兰市的学生运动及恐怖袭击事件，与及90年代在米兰复兴国家的风潮，历史将会不断重演，……今天的章节一出，启明上顿时沸腾了。