chore: 初始化平芝126kV隔离开关MesProject项目

Common/00-1Json8.3/Json8.3/Linq/MergeNullValueHandling.cs

@@ -0,0 +1,21 @@
+using System;
+
+namespace Newtonsoft.Json.Linq
+{
+    /// <summary>
+    /// Specifies how null value properties are merged.
+    /// </summary>
+    [Flags]
+    public enum MergeNullValueHandling
+    {
+        /// <summary>
+        /// The content's null value properties will be ignored during merging.
+        /// </summary>
+        Ignore = 0,
+
+        /// <summary>
+        /// The content's null value properties will be merged.
+        /// </summary>
+        Merge = 1
+    }
+}