矿井通风网络节点风压解算法。课程设计要求：要求从TXT文本中读入各个分支的始末节点和风阻值，并在控制台输入各分支的风量初值，通过迭代，得到各分支风量和各节点风压。-Pressure solution of mine ventilation network node algorithm. Course design: requirements TXT text read from the various branches of the circumstances leading to the no