从网络上截获的数据总是很多很杂的，而且有很多重复的，雷同的信息。为了能够更快速的从这些数据中获得信息，就需要对这些信息进行提炼和分析。这个PCA程序就是实现数据归类的，它能从大量多维的信息中提取主要的信息，即主成分，通过对这些个小数量的主成分进行分析，可以更快速有效地得到结果。-Intercepted from the network data is always a lot of very complicated and there are many repeated, identical information. In order to more quickly obtain information from these data, we need to refine this information and analysis. The PCA program is data classification, and it' s information from a large multi-dimensional extract the main message that the principal component, through which a small number of principal components analysis, can get results more quickly and effectively.