C#连接数据库（已封装好）

[{"title":"（ 19 个子文件 350KB ） C#连接数据库（已封装好）","children":[{"title":"ConsoleApplication3","children":[{"title":".vs","children":[{"title":"ConsoleApplication3","children":[{"title":"v14","children":[{"title":".suo <span style='color:#111;'> 45.00KB </span>","children":null,"spread":false}],"spread":true}],"spread":true}],"spread":true},{"title":"ConsoleApplication3.sln <span style='color:#111;'> 1024B </span>","children":null,"spread":false},{"title":"ConsoleApplication3","children":[{"title":"bin","children":[{"title":"Debug","children":[{"title":"ConsoleApplication3.pdb <span style='color:#111;'> 15.50KB </span>","children":null,"spread":false},{"title":"MySql.Web.dll <span style='color:#111;'> 91.50KB </span>","children":null,"spread":false},{"title":"MySql.Data.Entity.dll <span style='color:#111;'> 329.00KB </span>","children":null,"spread":false},{"title":"MySql.Data.Entity.EF6.dll <span style='color:#111;'> 340.50KB </span>","children":null,"spread":false},{"title":"ConsoleApplication3.exe <span style='color:#111;'> 6.50KB </span>","children":null,"spread":false},{"title":"MySql.Data.dll <span style='color:#111;'> 414.00KB </span>","children":null,"spread":false},{"title":"ConsoleApplication3.vshost.exe <span style='color:#111;'> 22.16KB </span>","children":null,"spread":false},{"title":"ConsoleApplication3.vshost.exe.manifest <span style='color:#111;'> 490B </span>","children":null,"spread":false}],"spread":true}],"spread":true},{"title":"Program.cs <span style='color:#111;'> 2.96KB </span>","children":null,"spread":false},{"title":"obj","children":[{"title":"Debug","children":[{"title":"ConsoleApplication3.pdb <span style='color:#111;'> 15.50KB </span>","children":null,"spread":false},{"title":"ConsoleApplication3.exe <span style='color:#111;'> 6.50KB </span>","children":null,"spread":false},{"title":"DesignTimeResolveAssemblyReferencesInput.cache <span style='color:#111;'> 6.55KB </span>","children":null,"spread":false},{"title":"ConsoleApplication3.csprojResolveAssemblyReference.cache <span style='color:#111;'> 29.97KB </span>","children":null,"spread":false},{"title":"TempPE","children":null,"spread":false},{"title":"ConsoleApplication3.csproj.FileListAbsolute.txt <span style='color:#111;'> 1.13KB </span>","children":null,"spread":false}],"spread":true}],"spread":true},{"title":"ConsoleApplication3.csproj <span style='color:#111;'> 3.02KB </span>","children":null,"spread":false},{"title":"SQLhelper.cs <span style='color:#111;'> 4.24KB </span>","children":null,"spread":false},{"title":"Properties","children":[{"title":"AssemblyInfo.cs <span style='color:#111;'> 1.31KB </span>","children":null,"spread":false}],"spread":true}],"spread":true}],"spread":true}],"spread":true}]