优化更新代码，添加界面功能并整合

ShrlAlgo.RvKits/RvIndependent/MetroGauges/Loader.cs

@@ -0,0 +1,50 @@
+using ShrlAlgo.RvKits.RvIndependent.MetroGauges.LandXMLData;
+
+using System.IO;
+using System.Xml.Serialization;
+
+namespace ShrlAlgo.RvKits.RvIndependent.MetroGauges
+{
+    public class Loader
+    {
+        public Model Load(string fileName)
+        {
+            XmlSerializer xmlSerializer = new XmlSerializer(typeof(Model));
+
+            using (
+                FileStream fileStream = File.Open(
+                    fileName,
+                    FileMode.OpenOrCreate,
+                    FileAccess.ReadWrite,
+                    FileShare.ReadWrite
+                )
+            )
+            {
+                using (NamespaceIgnorantXmlTextReader objXmlReader = new NamespaceIgnorantXmlTextReader(fileStream))
+                {
+                    return (Model)xmlSerializer.Deserialize(objXmlReader);
+                }
+            }
+        }
+
+        public XmlData XMLLoad(string fileName)
+        {
+            XmlSerializer xmlSerializer = new XmlSerializer(typeof(XmlData));
+
+            using (
+                FileStream fileStream = File.Open(
+                    fileName,
+                    FileMode.OpenOrCreate,
+                    FileAccess.ReadWrite,
+                    FileShare.ReadWrite
+                )
+            )
+            {
+                using (NamespaceIgnorantXmlTextReader objXmlReader = new NamespaceIgnorantXmlTextReader(fileStream))
+                {
+                    return (XmlData)xmlSerializer.Deserialize(objXmlReader);
+                }
+            }
+        }
+    }
+}