chore: 初始化平芝550kVMesProject项目

Common/00-1Json8.3/Json8.3/DateTimeZoneHandling.cs

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+#region License
+// Copyright (c) 2007 James Newton-King
+//
+// Permission is hereby granted, free of charge, to any person
+// obtaining a copy of this software and associated documentation
+// files (the "Software"), to deal in the Software without
+// restriction, including without limitation the rights to use,
+// copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the
+// Software is furnished to do so, subject to the following
+// conditions:
+//
+// The above copyright notice and this permission notice shall be
+// included in all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+// OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+// HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+// WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+// OTHER DEALINGS IN THE SOFTWARE.
+#endregion
+
+using System;
+
+namespace Newtonsoft.Json
+{
+    /// <summary>
+    /// Specifies how to treat the time value when converting between string and <see cref="DateTime"/>.
+    /// </summary>
+    public enum DateTimeZoneHandling
+    {
+        /// <summary>
+        /// Treat as local time. If the <see cref="DateTime"/> object represents a Coordinated Universal Time (UTC), it is converted to the local time.
+        /// </summary>
+        Local = 0,
+
+        /// <summary>
+        /// Treat as a UTC. If the <see cref="DateTime"/> object represents a local time, it is converted to a UTC.
+        /// </summary>
+        Utc = 1,
+
+        /// <summary>
+        /// Treat as a local time if a <see cref="DateTime"/> is being converted to a string.
+        /// If a string is being converted to <see cref="DateTime"/>, convert to a local time if a time zone is specified.
+        /// </summary>
+        Unspecified = 2,
+
+        /// <summary>
+        /// Time zone information should be preserved when converting.
+        /// </summary>
+        RoundtripKind = 3
+    }
+}