进行数据库编程，基于vc.net语言，是平时经常用到的小例子-For database programming, based on vc.net language, I usually use a small example

使用VB.NET编写的口算题生成器，支持模板创建和保存，多种情况(The use of computational problem generator written in VB.NET, create and save support templates, a variety of)