构建售票场景演示。

（1）通过图形化界面实现功能；

（2）支持手动动态设置总票数（200以上），要对票本身进行定义和描述；

（3）程序运行时，设定有20个售票员同时售票，售票行为采用随机数实现，使多个售票员的售票时间彼此没有规律性；

（4）在程序运行过程中，伴随正在售票，要在用户界面上显示当前剩余票数，以及各售票员已经售出的票数；

（5）在所有票均售出后，要对各个售票员的售票情况进行总结（至少包括售票数量，各次出票时间，票面信息），并按其卖票数量进行排名；

（6）展示的售票情况结果要能够采用文件方式导出并保存在本地，并且支持对该文本的直接打开和查看；文件内容模板请同学们自行设计。推荐采用xml实现。

（7）售票员的个数和单个售票员参数（如ID，名字，…）的设置，要求采用文件导入方式进行配置，导入后，要在界面上显示导入的各个售票员信息；

（8）要保证程序的健壮性。-Build a ticket scene demo.

(1) through the graphical interface to achieve the function

(2) to support the dynamic set the total number of votes (200 or more), to vote on its own definition and descr iption

(3) the program is running, set up 20 ticket sales at the same time, ticket sales using random numbers to achieve, so that more than one ticket salesman each other no regularity

(4) in the process of running the program, with the ticket, the user interface to display the current number of votes remaining, and the conductor has sold the number of votes

(5) After all the tickets are sold, the salesmen of each conductor to sum up the ticket (including at least the number of tickets, the ticket time, the face information), according to the number of their ticket sales ranking

(6) to show the results of the ticket to be able to use the file export and save the local, and to support the text of the direct open and view　file content template, please students to design. Recommende