C#语音编写的程序源文件，开发工具 VS2005和SQL2000 ，对C#开发者很有帮助，实体类、操作类分开，通用性很强，(C# program source files, development tools VS2005 and SQL2000, are very helpful to C# developers, the entity class, the operation class are separated, the versatility is very strong.)