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二更送上。她忙挺了挺胸膛，学着香荽的样子，迈方步走路。混战中，队长黄连向他们靠近，叫嚣着激励士气，一副英勇杀敌的模样。郑氏强忍抓住这娃儿暴打的冲动，将这小子拖到跟前，打叠起一万分耐心低头问道：你说，生病是不是很倒霉？秦涛连连点头。老王，这两天你让门卫多注意一点，寄过来的信件包裹也要认真核查。Beware of minor attacksPS: Many forums have seen beginners ask whether WCF still needs to learn in depth, because they think these technologies may be outdated. Maybe Microsoft will launch a new SOA implementation scheme at that time. Wouldn't it be a waste of time to learn in depth, so they feel that there is no need to learn in depth and just know how to use them. I had the same feeling about this problem before, but now I think that although WCF technology may be replaced, the key to understanding a technology in depth is not to know some more advanced API calls, but to understand its implementation mechanism and way of thinking. Even if the latter technology is replaced, the mechanism behind it is definitely similar. Therefore, if you have a thorough understanding of a technology, you will feel familiar with the new technology and relaxed about it. In addition, after you have a thorough understanding of a technology, you dare to say that you have mastered the technology well during the interview, instead of saying that you use it a lot at ordinary times. Once you ask deeply, you do not know the implementation principle behind it. This is also why I want to write WCF series. I hope this opinion is helpful to some beginners.