test9

代码说明：

  提供一個9個匯流排測試系統的參數，如需要的輸入支路阻抗和節點功率。包括支路、首節點編號、末節點號、支路阻抗、末節點给定功率。 (Provide a nine bus test system parameters, such as the needs of the input branch impedance and node power. Branch, the first node number, the last node, branch impedance, the last node to a given power.)