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众人轰然大笑。葡萄牙西班牙以及未来的大不列颠关于人口的麻烦同样严重，他们的解决方法很粗暴——抓黑奴。The picture shows Mr. Sun (first from the left) discussing with the team members.PS: 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forums have seen beginners ask whether WCF still needs to learn in depth, because they think these technologies may be outdated.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.Time relay, English name is me relay, is a relay that generates action only after the input action signal is added or removed, and the output circuit needs a specified accurate time. It is applied to low circuits to switch on or off high voltage and high current circuits. Time relay is also an electrical appliance that uses electromagnetic principle or principle to realize delay control, including air damping type, electric type, electronic type and other types.1. There are two options to manage the creation and destruction of state objects. The first is to create and then destroy state objects only when they are needed, and the other is to create all state objects from the beginning and never destroy them. If the state object is relatively large, the first method can be used to save memory, which can avoid creating some objects that will not be used and recycle them in time. However, if the state changes frequently, it is best to create all these state objects in the first place, and there is no need to destroy them, because they may be used again soon.When chatting with MM on QQ, I must say some affectionate words. I have collected a lot of disgusting love words. When needed, I just need to copy it out and put it into QQ. This is my love message prototype.