【优化】优化商品列表的筛选排序方式。

CoreCms.Net.Model/FromBody/FMPage.cs

@@ -26,6 +26,11 @@ namespace CoreCms.Net.Model.FromBody
         /// </summary>
         public int limit { get; set; } = 10;
 
+        /// <summary>
+        ///     排序
+        /// </summary>
+        public string order { get; set; } = string.Empty;
+
         /// <summary>
         ///     判断条件
         /// </summary>