Imports System.Threading Public Class g Shared sqlserverLazy As Lazy(Of IFreeSql) = New Lazy(Of IFreeSql)(New Func(Of IFreeSql)(Function() New FreeSqlBuilder() _ .UseConnectionString(DataType.SqlServer, "Data Source=.;Integrated Security=True;Initial Catalog=freesqlTest;Pooling=true;Max Pool Size=3;TrustServerCertificate=true") _ .UseAutoSyncStructure(True) _ .UseMonitorCommand(Sub(cmd) Trace.WriteLine(vbCrLf & "线程" & Thread.CurrentThread.ManagedThreadId & ": " & cmd.CommandText)) _ .UseLazyLoading(True) _ .Build())) Public Shared ReadOnly Property sqlserver As IFreeSql Get Return sqlserverLazy.Value End Get End Property End Class