Description: With a factory pattern write database access classes. When creating an interface for external use by DBHelperFactory IDBHelper object, and MySqlDBHelper inherited DBHelper, DBHelper has achieved IDBHelper. DBHelper is an abstract class.
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工厂模式的数据库访问类（支持各种数据库）\ClassDiagram（类关系图）.JPG
........................................\Thumbs.db
........................................\源文件\DBUtility\DBUtility.sln
........................................\......\.........\DBUtility.suo
........................................\......\.........\.........\DBHelper.cs
........................................\......\.........\.........\DBHelperFactory.cs
........................................\......\.........\.........\DBUtility.csproj
........................................\......\.........\.........\IDBHelper.cs
........................................\......\.........\.........\MySqlDBHelper.cs
........................................\......\.........\.........\SqlDBHelper.cs
........................................\......\.........\.........\Properties\AssemblyInfo.cs
........................................\......\.........\.........\obj\DBUtility.csproj.FileListAbsolute.txt
........................................\......\.........\.........\...\.ebug\DBUtility.dll
........................................\......\.........\.........\...\.....\DBUtility.pdb
........................................\......\.........\.........\...\.....\ResolveAssemblyReference.cache
........................................\......\.........\.........\bin\Debug\DBUtility.dll
........................................\......\.........\.........\...\.....\DBUtility.pdb
........................................\动态链接库\DBUtility.dll
........................................\类库结构文档.doc
........................................\使用说明.doc
........................................\源文件\DBUtility\DBUtility\obj\Debug\TempPE
........................................\......\.........\.........\...\Debug
........................................\......\.........\.........\bin\Debug
........................................\......\.........\.........\Properties
........................................\......\.........\.........\obj
........................................\......\.........\.........\bin
........................................\......\.........\DBUtility
........................................\......\DBUtility
........................................\源文件
........................................\动态链接库
工厂模式的数据库访问类（支持各种数据库）
说明.txt
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