Addd demo

Src/Asp.NetCore2/MongoDbTest/UnitTest/Cases.cs

@@ -29,6 +29,7 @@ namespace MongoDbTest
             InsertOrUpdate.Init();
             Unitdafasdys.Init();
             Enum.Init();
+            Enum2.Init();
 
             //主键不是ObjectId类型用例 
             //The primary key is not an ObjectId type use case

Src/Asp.NetCore2/MongoDbTest/UnitTest/Enum2.cs

@@ -0,0 +1,30 @@
+using SqlSugar;
+using SqlSugar.MongoDb;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace MongoDbTest
+{
+    internal class Enum2
+    {
+        public static void Init()
+        {
+            var db = DbHelper.GetNewDb();
+            db.CodeFirst.InitTables<Student>();
+            db.DbMaintenance.TruncateTable<Student>();
+            db.Insertable(new Student() { type = DbType.Tidb }).ExecuteCommand();
+            if (db.Queryable<Student>().First().type != DbType.Tidb) Cases.Init();
+            if (db.Queryable<Student>().Where(s=>s.type==DbType.Tidb).First().type != DbType.Tidb) Cases.Init();
+        }
+        [SqlSugar.SugarTable("UnitStudentadsdujj3z1")]
+        public class Student : MongoDbBase
+        {
+            //存储string枚举
+            [SugarColumn(SqlParameterDbType =typeof(SqlSugar.DbConvert.EnumToStringConvert))]
+            public DbType type { get; set; } 
+        }
+    }
+}