1、删除视频，永不下载

2、去重-优先级
3、视频合成优化
4、其他优化

model/DouyinVideoDelete.cs

@@ -0,0 +1,24 @@
+using SqlSugar;
+
+namespace dy.net.model
+{
+    /// <summary>
+    /// 永久删除的视频记录-不再下载
+    /// </summary>
+    [SugarTable(TableName = "dy_delete_video")]
+    public class DouyinVideoDelete
+    {
+        /// <summary>
+        /// 
+        /// </summary>
+        [SugarColumn(IsPrimaryKey = true)]
+        public string Id { get; set; }
+        /// <summary>
+        /// 原视频Id
+        /// </summary>
+        [SugarColumn(IsNullable =true,Length =50)]
+        public string ViedoId { get; set; }
+
+        public DateTime DeleteTime { get; set; }
+    }
+}