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.

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