实现作业提交系统的主要功能代码，没有源始数据库文件，只能够参考不能复制进行商用，尊重作者版权，本文为引用作者的文档，感谢作者分享文档-Job submission system to achieve the main function of the code, there is no ursprunglich database file can only refer to can not be copied for commercial use, to respect the authors c