命名调整

AntdWpf/Converters/CornerRadiusToDoubleConverter.cs

@@ -9,7 +9,7 @@ public class CornerRadiusToDoubleConverter : IValueConverter
 {
     public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
     {
-        if (!(value is CornerRadius))
+        if (value is not CornerRadius)
         {
             return default(double);
         }