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The code for creating iframe and div for the following tests is as follows:昨晚咋那么急哩？刘大胖子和刘家婆媳也都愤愤地瞪着他。呼——王陆轻轻呼出一口气。围观靖军一片哗然，当即冲过来十几个阻截，想看这女子到底有多大本事。暗月世家举办祖宗大会，意图借机处置青羽世家。众附属家族起义，脱离暗月世家自立门户。梁项怒下杀手，所幸安雪云、徐副院长相继赶到，逼迫梁项退让，叶星河才得以全身而退。但安雪云却因此被软禁，不久后便要履行婚约嫁往京都。胞妹雪嫣前来求助，叶星河潜入天恒世家府邸，与雪云约定在前往京都途中劫车私奔。梁项秋后算账，将当日起义的附属世家一一灭族。叶星河与梁玉里应外合，将梁项等人诱入北冥山埋伏中，最终梁玉取代梁项成为家主。叶星河与夏雨凝为寻天龙宝藏，深入天翎神宫一探究竟。The reason why the logic for creating an object is put into a separate class is that it can be used by multiple clients. And separates the creation and use of objects. However, this design also has many defects. First of all, SimpleFactory is a specific class, so we must program for the implementation, making the system lose its flexibility in this respect. Second, if we add new products, we have to modify the code in SimpleFactory, which violates the opening and closing principle. The above model is also called simple factory. He does not appear in GOF mode, it is more like a programming habit.