From adf5e5c572a23df4b1908ee540c776ae52a7652b Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E5=A7=9A=E5=BD=AA?= <1315508912@qq.com>
Date: Tue, 5 Mar 2024 21:19:31 +0800
Subject: [PATCH] =?UTF-8?q?feat:=20=E4=BB=85=E5=85=81=E8=AE=B8=E5=8D=95?=
 =?UTF-8?q?=E5=AE=9E=E4=BE=8B=E5=90=8C=E6=97=B6=E8=BF=90=E8=A1=8C?=
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---
 DownKyi/App.axaml.cs | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/DownKyi/App.axaml.cs b/DownKyi/App.axaml.cs
index f5b692c..42f38cb 100644
--- a/DownKyi/App.axaml.cs
+++ b/DownKyi/App.axaml.cs
@@ -2,6 +2,7 @@ using System;
 using System.Collections.ObjectModel;
 using System.Collections.Specialized;
 using System.Linq;
+using System.Threading;
 using System.Threading.Tasks;
 using Avalonia;
 using Avalonia.Controls;
@@ -45,13 +46,19 @@ public partial class App : PrismApplication
 
     public override void Initialize()
     {
+        var mutex = new Mutex(true, "Global\\DownKyi", out var createdNew);
+        if (!createdNew)
+        {
+            Environment.Exit(0);
+        }
+
         AvaloniaXamlLoader.Load(this);
         if (ApplicationLifetime is IClassicDesktopStyleApplicationLifetime desktop)
         {
             desktop.Exit += OnExit!;
             AppLife = desktop;
         }
-        
+
         base.Initialize();
     }