添加项目文件。

Models/StageData.cs

@@ -0,0 +1,20 @@
+using CommunityToolkit.Mvvm.ComponentModel;
+
+namespace AciTester.Models;
+
+public partial class StageData : ObservableObject
+{
+    [ObservableProperty]
+    private string stageName = string.Empty;
+
+    [ObservableProperty]
+    private double cutoffDiameter;  // 截止直径 (μm)
+
+    [ObservableProperty]
+    private double initialWeight;   // 测前质量 (g)
+
+    [ObservableProperty]
+    private double finalWeight;     // 测后质量 (g)
+
+    public double NetWeight => finalWeight - initialWeight;
+}