Update demo

Src/Asp.NetCore2/QuestDbTest/Demo/Demo1_Queryable.cs

@@ -52,6 +52,31 @@ namespace OrmTest
             var q2 = db.Queryable<Order>().Take(2);
             var test05 = db.UnionAll(q1, q2).ToList();
             var test06 = db.Queryable<Order>().ToList();
+ 
+            if (db.DbMaintenance.IsAnyTable("users", false))
+            {
+                db.DbMaintenance.DropTable("users");
+            }
+            if (!db.DbMaintenance.IsAnyTable("users", false))
+            {
+                db.CodeFirst.InitTables<Users>();
+            }
+ 
+           var list = new List<Users>();
+            for (var i = 0; i < 10000; i++)
+            {
+
+                list.Add(new Users
+                {
+                    Id = i + 1,
+                    createtime = DateTime.Now,
+                    username = "161718",
+                    password = "161718",
+                });
+            }
+            db.Insertable<Users>(list).ExecuteCommand();
+
+
             Console.WriteLine("#### Examples End ####");
             Console.WriteLine("#### Examples End ####");
         }

Src/Asp.NetCore2/QuestDbTest/Models/users.cs

@@ -0,0 +1,21 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using SqlSugar;
+namespace OrmTest
+{
+    [SqlSugar.SugarTable("users")]
+    public class Users
+    {
+        [SugarColumn(IsPrimaryKey = true)]
+        public int Id { get; set; }
+
+        [SqlSugar.SugarColumn(IsNullable = true)]
+        public DateTime? createtime { get; set; }
+        public string username { get; set; }
+
+        public string password { get; set; }
+    }
+}