Hacker is a Chinese words, is derived from English hacker, with the emergence of gray pigeons, gray pigeons became a lot under the guise of hackers nominal control computer hacking techniques, so the split between "hackers" and "hackers". Hacker, the 2012 movie channel show, has also started to use the word Hacker, showing the convergence of Chinese usage habits. In fact, Hacker (or Hacker) and Hacker or Cracker are not able to achieve complete translation, which is the difference in the development of Chinese and English vocabularies. The word Hacker initially, refers to keen on computer technology, the level of computer experts, particularly programmers, gradually divided into white hat, grey hat and black hat, one black hat, black hat) actually is a cracker. In media reports, the word "hacker" often refers to software cracker, while the hacker (black hat) is the white hat The marriage certificates of the children always mention the death or not of their parents. In the most recent civil status records, the date and place of death are even mentioned. Similarly, the death certificates of the children make it possible to know whether their parents were deceased or not, but without more precision. The market is the condition that Commodity Exchange is carried out smoothly, it is commodity circulation domain all Commodity Exchange activity total. The market system is made up of all kinds of professional market, such as goods and services market, financial market, labor market, technology market, information market, the real estate market, cultural market, a complete system of tourism market, etc. At the same time, each professional market in the market system has its special functions, which are interdependent and mutually restricted, and work together in the social economy