In this era of big data, you do not grasp the core technology, then you will be eliminated, I think my mobile phone will now be threat defense got unbearable, I will give you is I want to see what I use when wrong, so there will be such a situation, I think my mobile phone is threat defense is a very common thing, because a lot of people seem to have suffered in that situation, I do not know how to do, in fact, I now believe that as long as we do these things, then do not need to rest what to worry about, so now I don’t need that much of the pipe, as long as I solve my problem now can.