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Differences between simple factories and factory methods: Simple factories and factory method patterns look very similar, especially specific factories in simple factories and factory methods. Simple factory, all things have been done in one place. However, the factory method creates a framework for subclasses to decide how to implement it. For example, in the factory method, the OrderPizza method creates a general framework to create pizza. The OrderPizza method relies on the factory method to create specific classes and make actual pizza. It is possible to decide what the actual products manufactured are by inheriting the factory. Simple factories do not have this flexibility.[Investigation] Beibadao Group's Manipulation Reveals Secrets: Artificially Creating "Liquidity Vortex" to Grab Huge Profits由郑潇执导，徐正溪、宋祖儿领衔主演，周韵茹、宋海颉等联合主演的都市励志剧。In the 1930s, among the foreign media in China, Aban was second to none because he represented the New York Times. Newspapers are already dominant in the western media, and the journalists' moral integrity is respected. After the Xi'an Incident, Chiang Kai-shek's foreign aide Duan Na rushed to Xi'an to mediate and sent a telegram to the press. The first target was Aban. This was recorded in Zeller's "Duan Na and Secrets of Political Affairs of the Republic of China" (Hunan Publishing House, 1991).副将听到之后，笑道：将军。PS: The above articles are published or reprinted by Xingtian Network. Xingtian DDOS: Create the greenest and most stable DDOS attacker! Official website:还有周菡，他也不能辜负她。