一个银行业务的事件驱动模拟系统，银行有两种业务：第一，取款或借款；第二，存款或还款。银行有两个窗口，用两个队列实现。事件表用带头结点的单向链表实现。-A banking system of event-driven simulation, the bank has two operations: first, the withdrawal or loan second, deposit or payment. Bank has two windows, with two queue imple