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临行前，小葱要给师傅磕头拜别。It is a skill that everyone can learn!The spring rain breaks at the beginning, the spring forest is in full bloom, and the spring breeze is ten miles less than you. This spring, the OPPO Star Family welcomed a new member @ Yang Yang.Fire automationTherefore, learning design patterns, The first thing to do is to understand which aspects of design patterns are available to developers, Then, the principle, timing and method of each design pattern are studied respectively, that is to say, under what circumstances should a certain design pattern be used? When understanding the timing of a certain design pattern, it is also necessary to understand what consequences will be caused if this design pattern is not used at this time. After understanding the principle and usage of each pattern, more importantly, learning the object-oriented thinking mode, after mastering the object-oriented thinking mode, looking back at the design pattern, you will have a deeper understanding. Finally, learning the design pattern, you must study hard and practice more. "I agree with the last sentence very much."Tone pattern. Parameters that determine the generated color include: brightness and saturation of the bottom color and hue of the top color.