diff --git a/Src/Asp.NetCore2/SqlSeverTest/UserTestCases/UnitTest/Main.cs b/Src/Asp.NetCore2/SqlSeverTest/UserTestCases/UnitTest/Main.cs
index d9cabba6c..6208daa2f 100644
--- a/Src/Asp.NetCore2/SqlSeverTest/UserTestCases/UnitTest/Main.cs
+++ b/Src/Asp.NetCore2/SqlSeverTest/UserTestCases/UnitTest/Main.cs
@@ -33,6 +33,7 @@ namespace OrmTest
         }
         public static void Init()
         {
+            Unitdsfsssysf.Init();
             Unitsdfadysssdf.Init();
             UnitOneToMany123131.Init();
             Unitadfasdys.Init();
diff --git a/Src/Asp.NetCore2/SqlSeverTest/UserTestCases/UnitTest/Unitdsfsssysf.cs b/Src/Asp.NetCore2/SqlSeverTest/UserTestCases/UnitTest/Unitdsfsssysf.cs
new file mode 100644
index 000000000..1e369be86
--- /dev/null
+++ b/Src/Asp.NetCore2/SqlSeverTest/UserTestCases/UnitTest/Unitdsfsssysf.cs
@@ -0,0 +1,70 @@
+using SQLitePCL;
+using SqlSugar;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace OrmTest
+{
+    public class Unitdsfsssysf
+    {
+        public static void Init() 
+        {
+            var db = NewUnitTest.Db;
+            db.CodeFirst.InitTables<Products>();
+            db.DbMaintenance.TruncateTable<Products>();
+            db.Insertable(new Products() { BusinessSliceID = 1, Id = 1, ItemName = "a" }).ExecuteCommand();
+
+            var cargolaneDbs = db.Queryable<Products>()
+                .Select(it => new
+                {
+                    name=it.ItemName,
+                    newit=it,
+                })
+                .ToList();
+            if (cargolaneDbs.FirstOrDefault().newit.ItemName != "a") 
+            {
+                throw new Exception("unit error");
+            }
+            var cargolaneDbs2 = db.Queryable<Products>()
+             .Select(it => new
+             {
+                 name = it.ItemName,
+                 it,
+             })
+             .ToList();
+            if (cargolaneDbs2.FirstOrDefault().it.ItemName != "a")
+            {
+                throw new Exception("unit error");
+            }
+        }
+        [SugarTable("Unitpsroducsfdsatsfd")]
+        public class Products
+        {
+            /// <summary>
+            /// 产品 Id
+            /// </summary>
+            [SugarColumn(IsPrimaryKey = true)]
+            public int Id { get; set; }
+
+            /// <summary>
+            /// 物品名称
+            /// </summary>
+            public string ItemName { get; set; }
+
+
+            /// <summary>
+            /// 关联商品id
+            /// </summary>
+            public int BusinessSliceID { get; set; }
+
+            /// <summary>
+            /// 关联商品数据
+            /// </summary>
+            [Navigate(NavigateType.OneToOne, nameof(BusinessSliceID), nameof(Id))]
+            public Products? SliceProduct { get; set; }
+        }
+    }
+}