结构调整，便于后续扩展

AIStudio.Wpf.BaseDiagram/Converters/NumberConverter.cs

@@ -0,0 +1,25 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows.Data;
+
+namespace AIStudio.Wpf.BaseDiagram.Converters
+{
+    public class NumberConverter : IValueConverter
+    {
+        public object Convert(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
+        {
+            if (value == null)
+                return 0.ToString("00");
+            return (System.Convert.ToInt32(value) + 1).ToString("00");
+
+        }
+
+        public object ConvertBack(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
+        {
+            throw new NotImplementedException();
+        }
+    }
+}