通过随机数原理，将设定好的数字随机显示在界面上，然后随机选定某个数字。-By the principle of random numbers, random digits will set a good display in the interface, and then randomly select a number.

这是一个简单的考试系统。一般学生交作业时可用来参考。-This is a simple test system. When homework is generally used to refer to students.

考试成绩管理系统，实现成绩的增加、修改、删除、查询等功能。-Examination performance management systems to achieve increased performance, modify, delete, query and other functions.

是我在实习单位时独立做的一个项目，三层架构，参考了多个考试系统而开发的,题型有单选题、多选题、判断题、填空题和问答题（或者也可以说是简答题）-Is a project I' m doing at the time of independence internships, three-tier structure, with reference to a number of test systems and development, there are multiple choice que