fen否则需依次排队等候。一旦有顾客理完发离去时，排在队头的顾客便可开始理发。若理发店每天 连续营业T小时， 求一天内顾客在理发馆内平均的逗留时间、顾客排队等候理发的队列的平均长度、营业时间到点后仍需 要完成的收尾工作时间 测试数据：理发椅数N及关门时间由用户读入，第一个顾客进门的时刻为0，之后每个顾客进门的时刻由 前一个顾客进门时间确定。即在进门事件发生时即产生两个随机数（durtime,intertime）,durtime为进 门

of the electrical power system. At the time of transformer energization high current is drawn by the transformer known as the inrush current. This current is nearly ten times more than the full load current of transformer. It produces mechanical stre

针对菜单按钮的需求，给出了一个菜单按钮的CMenuButton类，以及应用该类实现菜单按钮的测试工程。-aimed at the menu button, a class of Menu Class named CMenuButton was given. a test project was presented too.