Most of the graduates in the transmission to the unit own good will face such a question "do you feel the lack of work experience," you have to say sorry, "I am a lack of work experience, but I believe I have the ability to make up for the deficiency of". At this time, even if you are a student at a prestigious university, you will clearly feel your weaknesses. Work experience including social practice is very important, it not only means that the mastery of knowledge and to use, but also marks a person's growth, reflects psychological maturity and the ability to communicate. We've mentioned before that the main group of hackers is young people, and in fact it is. In the 21st century, it is hard to see the old hacker over thirty years old on the Internet: many hackers generally "disappear" on the Internet in the future. Where did these people go? Why did they go? Actually these are easy to understand, as the growth of the age and mental maturity, the curiosity of young gradually out of them, they begin to step into a stable stage, the physical strength and energy began to fall, how can no longer stay up late, do not know tired. For example, starting to have a family burden, to make a living and a career. Because of the hacker industry, there are only a few professional hackers, and many are amateurs. They spend a lot of time and energy without pay. So it's also natural to quit "quack" when they're older. Of course, there are a lot of people who have been interested in their hacking career for a lifetime. Some of the hackers may go on to become security experts, anti-hacker experts and continue to study technology in the future. There are also people who do things that have nothing to do with hackers. Web usability is very important in modern website design. The idea requires making web sites user friendly with an end-user, minus the requirement that any specialized training be undertaken. The user should be able to intuitively relate the actions she or he must perform online page on the expected connection between such actions. In general, usability aims to give the data to the user inside a clear and concise way, supply the correct choices towards the users, in a very obvious way, remove any ambiguity about the consequences of an action, and hang what is important inside right place on an online page or a web application. Of course, if it's more broadly, the sounds and smells of the opposite sex can also trigger our sexual response. With the evolution of human civilization, vision has gradually led to the first hole in our acceptance of the impression of the opposite sex. So, generally speaking sexy, it's basically the visual aspect of it