GIT练习

WorkBench/Node/ViewModel/ExpOpNodeViewModel.cs

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+using Serein.DynamicFlow.NodeModel;
+using Serein.WorkBench.Node.View;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace Serein.WorkBench.Node.ViewModel
+{
+    public class ExpOpNodeViewModel: NodeControlViewModel
+    {
+        public readonly SingleExpOpNode node;
+
+        public string Expression
+        {
+            get => node.Expression;
+            set
+            {
+                node.Expression = value;
+                OnPropertyChanged();
+            }
+        }
+
+
+        public ExpOpNodeViewModel(SingleExpOpNode node) 
+        { 
+            this.node = node;
+        }
+    }
+}