这份报告，真正意义上的解释了勤工助学系统的整体的设计方案和了解内容，这是数据库设计的报告，只有了解了这方面的内容，才能立于不败之地。-This report explains the true sense of the overall design work-study programs and understand the contents of the system, which is designed for the reporting database, only learned about the contents of this area, to be invincible.