本文介绍了一个带知识库的动态系统自动仿真程序块——Au。在 Au 块中,我们将非精确的经验知识与精确的数值算法结合起来,初步解决了一些单靠算法难以解决的问题,如病态性判断、算法及阶次选择,异常现象的处理等。例题试验表明,Au 块仿真效率较高。 This article introduces a dynamic system simulation module with knowledge base - Au. In the Au block, we combine inaccurate empirical knowledge with accurate numerical algorithms to solve some problems that are difficult to solve by algorithms, such as pathological judgment, algorithm and order selection, and anomaly handling. Example tests show that, Au block simulation is more efficient.