Update demo

Src/Asp.NetCore2/TDengineTest/Demo/ORMTest_Partial/1_InsertUsingTag.cs

@@ -1,4 +1,5 @@
 using SqlSugar;
+using SqlSugar.TDengine;
 using System;
 using System.Collections.Generic;
 using System.Linq;
@@ -9,8 +10,17 @@ namespace TDengineTest
     public partial class ORMTest
     {
         public static void InsertUsingTag(SqlSugarClient db) 
+        { 
+            db.CodeFirst.InitTables<SUsingTagModel>();
+        }
+        [STableAttribute(STableName = "SUsingTagModel", Tag1 = nameof(Tag1))]
+        public class SUsingTagModel
         {
-
+            [SqlSugar.SugarColumn(IsPrimaryKey = true)]
+            public DateTime Ts { get; set; }
+            public bool Boolean { get; set; }
+            [SqlSugar.SugarColumn(IsIgnore = true)]
+            public string Tag1 { get; set; }
         }
     }
 }