FreeSqlDbContextExtensions remove test code

Examples/efcore_to_freesql/Entitys/Song.cs

@@ -0,0 +1,48 @@
+using FreeSql.DataAnnotations;
+using System;
+using System.Collections.Generic;
+
+namespace efcore_to_freesql.Entitys
+{
+    public class SongType
+    {
+        public int Id { get; set; }
+        public string Name { get; set; }
+
+        public List<Song> Songs { get; set; }
+    }
+
+    public class Song
+    {
+        [Column(IsIdentity = true)]
+        public int Id { get; set; }
+        public string Title { get; set; }
+        public string Url { get; set; }
+        public DateTime CreateTime { get; set; }
+
+        public int TypeId { get; set; }
+        public SongType Type { get; set; }
+        public List<Tag> Tags { get; set; }
+
+        public int Field1 { get; set; }
+        public long RowVersion { get; set; }
+    }
+    public class Song_tag
+    {
+        public int Song_id { get; set; }
+        public Song Song { get; set; }
+
+        public int Tag_id { get; set; }
+        public Tag Tag { get; set; }
+    }
+
+    public class Tag
+    {
+        [Column(IsIdentity = true)]
+        public int Id { get; set; }
+
+        public string Name { get; set; }
+
+        public List<Song> Songs { get; set; }
+    }
+}