用两个线程模拟存票、售票过程:

假定开始售票处并没有票，一个线程往里存票，另外一个线程则往出卖票；

我们新建一个票类对象，让存票和售票线程都访问它。本例采用两个线程共享同一个数据对象来实现对同一份数据的操作。

-Simulations using two threads exist votes, ticketing process: Assuming no ticket outlets started a thread inside Depository, another thread is Wang Chu ticket　tickets we create a class object, so keep ticket and ticket threads access it . This example uses two threads share the same data object to achieve the same data operations.