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2. All state-related behaviors are packaged in the buttonWasPressed method. If strong light, super light and ultimate strong light are added to this lamp in the future, it will be impossible to predict how much this method will expand. Of course, in order to simplify the example, when the state changes here, simply print a log and innerHTML that changes the button. In actual development, there may be much more things to deal with, that is, the buttonWasPressed method is much larger than it is now. < div class= "one" style= "width: 200px; Height: 200px; Background: green; "> oneIn many fields, the road to excellence is not the result of accurate calculation of time, but vague and ambiguous. No simple model leads to greatness.　　身心俱疲的DJ决定换一个生活环境，他只身来到亚特兰大，进入声望很高的黑人学校--真理大学进修，尽管他对舞蹈的天赋和野心足以使他成为顶级舞者，然而由于DJ觉得在学校里过于拘束，再加上失去弟弟的痛苦，他一直隐忍着自己。正是在这样一个与自己的性格完全背道而驰的全新生活环境里，DJ却发现了一个“踏步舞”的世界。电视剧《湘西往事》讲述的是1949年解放战争时期，以湘西剿匪为背景，艺术地再现了当年的斗智斗勇、爱恨情仇。A fabric dipped into a foliar solution.