添加项目文件。

Live-Charts-master/Examples/UWP/CartesianChart/NegativeStackedRow/NegativeStackedRowExample.xaml.cs

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+using LiveCharts;
+using LiveCharts.Uwp;
+using System;
+using Windows.UI.Xaml.Controls;
+
+// The Blank Page item template is documented at http://go.microsoft.com/fwlink/?LinkId=234238
+
+namespace UWP.CartesianChart.NegativeStackedRow
+{
+    /// <summary>
+    /// An empty page that can be used on its own or navigated to within a Frame.
+    /// </summary>
+    public sealed partial class NegativeStackedRowExample : Page
+    {
+        public NegativeStackedRowExample()
+        {
+            InitializeComponent();
+
+            SeriesCollection = new SeriesCollection
+            {
+                new StackedRowSeries
+                {
+                    Title = "Male",
+                    Values = new ChartValues<double> {.5, .7, .8, .8, .6, .2, .6}
+                },
+                new StackedRowSeries
+                {
+                    Title = "Female",
+                    Values = new ChartValues<double> {-.5, -.7, -.8, -.8, -.6, -.2, -.6}
+                }
+            };
+
+            Labels = new[] { "0-20", "20-35", "35-45", "45-55", "55-65", "65-70", ">70" };
+            Formatter = value => Math.Abs(value).ToString("P");
+
+            DataContext = this;
+
+        }
+
+        public SeriesCollection SeriesCollection { get; set; }
+        public string[] Labels { get; set; }
+        public Func<double, string> Formatter { get; set; }
+    }
+}