可以动态的加载位图，根据结点间的关系动态绘制流程图，结点可以动态拖动，相应流程连接线跟着变化。可以根据自己的需要设置连接点和连接点的关系。-Can dynamically load a bitmap, according to the relationship between nodes in the dynamic drawing flowcharts, nodes can dynamically drag, followed by corresponding changes in flow