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The signal attenuation of 100 meters cable is the same. Therefore, the influence and effect of temperature on signal attenuation is far greater than many other fixed factors.肖亮一方面震撼到不能自抑，另一方面又感觉有一些不真实。Therefore, 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."　1940年印度尼西亚独立战争中一名荷兰典狱长的故事初选定于永平十九年正月初十，在玄武侯府进行。　　二哥海峰，他生在一个富裕的家庭，却因隔阂深感无家可归。