App.xaml.cs

@@ -1,4 +1,5 @@
 using System;
+using System.Configuration;
 using System.Diagnostics;
 using System.IO;
 using System.Security.Principal;
@@ -53,6 +54,17 @@ namespace ShanghaiEnvironmentalTechnology
                 RestartAsAdmin();
                 Shutdown();
             }
+
+            // 加载保存的语言
+            string savedLanguage = ConfigurationManager.AppSettings["Language"] ?? "zh-CN";
+            var resourceDict = new ResourceDictionary
+            {
+                Source = new Uri($"/Resources/Strings.{savedLanguage}.xaml", UriKind.Relative)
+            };
+
+            Current.Resources.MergedDictionaries.Clear();
+            Current.Resources.MergedDictionaries.Add(resourceDict);
+
         }
 
         private bool IsRunAsAdmin()