我写了一个小图形可视化类:publicvoidsimpleGraph(SparseMultigraphgraph,Stringname){Layoutlayout=newISOMLayout(graph);layout.setSize(newDimension(800,800));BasicVisualizationServervv=newBasicVisualizationServer(layout);vv.setPreferredSize(newDimension(850,850));//SetstheviewingareasizeJFrameframe=newJFrame(nam