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Obviously, the significance of introducing Xiaomi-and other well-known enterprises that can be predicted-needs to be considered under the big goal of building a scientific research center in Shanghai and closely linked to the "Made in Shanghai" brand that is being launched. As one of Shanghai's "four major brands", the manufacturing upgrading tasks covered by the latter are the important core of the "science and technology innovation center with global influence" and the "heavy equipment" for Shanghai to enhance its city's energy level and core competitiveness.张杨点头道：就是这样了。Separate the abstract part from its implementation part so that they can all change independently.患有先天性心脏病的富家少爷Techo因病而变得自暴自弃、脾气暴躁。他的家庭医生为了使他平静下来给他请了一个家庭老师Morin让他学画画。但Techo常常与Morin作对，经常与她吵架，使俩人的关系十分僵硬，但经过一些时间的相处后，彼此渐渐了解到对方，并渐生情意……The fundamental reason for using design patterns is to adapt to changes, improve code reuse rate, and make software more maintainable and scalable. In addition, the following principles should be followed when designing: single responsibility principle, open and closed principle, Richter substitution principle, dependency inversion principle, interface isolation principle, composite reuse principle and Dimit principle. Each design principle is described below.不多送些，也分不过来呢，于是就很大方地说分一半。从前，杨寿全是不愿意与这类人为伍的。