社交网络中一些点是中枢点，这些点在社交网络中占有重要地位，但是计算结点连接度的复杂度比较高，这篇论文主要做了改进算法效率的工作-Social network is the central point of some points, these points in the social network plays an important role, but the computing nodes connected relatively high degree of complexity, th