在确定33个东亚集装箱港口的基础上,根据全球运力份额前20名班轮公司的现有航线分布情况,构建了一个港口的有向二分网络。运用复杂网络中的k-核分析对该港口网络进行层次划分,分析各个层次内部和层次之间港口的连接关系并考察了低层次港口的k-核深度。此外还分析了核心结构的小世界特性,并分别从聚集系数、平均最短路径长度以及接近中心势三个方面,针对最高层次中的每个港口对网络整体结构的影响进行了进一步研究。 Based on the identification of 33 East Asia container ports, a directional dichotomy of ports was constructed based on the distribution of the existing routes of the top 20 shipping companies with global capacity share. The k-core analysis of complex networks is used to classify the port network. The connection between ports in different levels and layers is analyzed. The k-core depth of low-level ports is also investigated. In addition, the small-world characteristics of the core structure are analyzed and the influence of each port at the highest level on the overall network structure is further studied from the aspects of aggregation coefficient, average shortest path length and near-center potential.