为了定量分析网络舆论导向机理与作用效果,设计了一种算法,基于社会网络分析(SNA)中的网络中心势对网络舆论导向中常见的硬控制与软控制方法进行了定量分析.以天涯论坛上的“华南虎”事件为实验数据,对该算法进行了仿真验证,并深入分析了这种导向算法在舆论演化各阶段的运用方法. In order to quantitatively analyze the mechanism and effect of the network public opinion guidance, an algorithm is designed to quantitatively analyze the common hard control and soft control methods in the network-based public opinion orientation based on the network center potential in the social network analysis (SNA) On the “South China tiger” event as experimental data, the algorithm was verified by simulation, and in-depth analysis of the guidance algorithm in the evolution of the public opinion of the various stages of the use of methods.