diff --git a/src/MaaWpfGui/Main/AsstProxy.cs b/src/MaaWpfGui/Main/AsstProxy.cs
index e715be335c..4eced374dd 100644
--- a/src/MaaWpfGui/Main/AsstProxy.cs
+++ b/src/MaaWpfGui/Main/AsstProxy.cs
@@ -1057,7 +1057,7 @@ namespace MaaWpfGui.Main
                             allDrops += "\n";
                         }
 
-                        allDrops = allDrops.EndsWith("\n") ? allDrops.TrimEnd('\n') : LocalizationHelper.GetString("NoDrop");
+                        allDrops = allDrops.EndsWith('\n') ? allDrops.TrimEnd('\n') : LocalizationHelper.GetString("NoDrop");
                         Instances.TaskQueueViewModel.AddLog(LocalizationHelper.GetString("TotalDrop") + "\n" + allDrops +
                             (curTimes >= 0 ? $"\n{LocalizationHelper.GetString("CurTimes")} : {curTimes}" : string.Empty));
                         break;
@@ -1085,7 +1085,7 @@ namespace MaaWpfGui.Main
                         string logContent = tags.Select(tagName => tagName.ToString())
                             .Aggregate(string.Empty, (current, tagStr) => current + (tagStr + "\n"));
 
-                        logContent = logContent.EndsWith("\n") ? logContent.TrimEnd('\n') : LocalizationHelper.GetString("Error");
+                        logContent = logContent.EndsWith('\n') ? logContent.TrimEnd('\n') : LocalizationHelper.GetString("Error");
                         Instances.TaskQueueViewModel.AddLog(LocalizationHelper.GetString("RecruitingResults") + "\n" + logContent);
 
                         break;
@@ -1152,7 +1152,7 @@ namespace MaaWpfGui.Main
                         var selected = (JArray)subTaskDetails["tags"] ?? new();
                         string selectedLog = selected.Aggregate(string.Empty, (current, tag) => current + (tag + "\n"));
 
-                        selectedLog = selectedLog.EndsWith("\n") ? selectedLog.TrimEnd('\n') : LocalizationHelper.GetString("NoDrop");
+                        selectedLog = selectedLog.EndsWith('\n') ? selectedLog.TrimEnd('\n') : LocalizationHelper.GetString("NoDrop");
 
                         Instances.TaskQueueViewModel.AddLog(LocalizationHelper.GetString("Choose") + " Tags：\n" + selectedLog);
 
@@ -1187,7 +1187,6 @@ namespace MaaWpfGui.Main
                     Instances.TaskQueueViewModel.AddLog(string.Format(LocalizationHelper.GetString("RoguelikeInvestment"), subTaskDetails["count"], subTaskDetails["total"], subTaskDetails["deposit"]), UiLogColor.Info);
                     break;
 
-
                 case "RoguelikeSettlement":
                     // 肉鸽结算
                     bool roguelikeGamePass = (bool)subTaskDetails["game_pass"];
@@ -1456,7 +1455,7 @@ namespace MaaWpfGui.Main
         /// <returns>是否有效。</returns>
         private static bool IfPortEstablished(string address)
         {
-            if (string.IsNullOrEmpty(address) || !address.Contains(":"))
+            if (string.IsNullOrEmpty(address) || !address.Contains(':'))
             {
                 return false;
             }
@@ -1515,7 +1514,7 @@ namespace MaaWpfGui.Main
                 // tcp连接测试端口是否有效，超时时间500ms
                 // 如果是本地设备，没有冒号
                 bool adbResult =
-                    (!Instances.SettingsViewModel.ConnectAddress.Contains(":") &&
+                    (!Instances.SettingsViewModel.ConnectAddress.Contains(':') &&
                     !string.IsNullOrEmpty(Instances.SettingsViewModel.ConnectAddress)) ||
                     IfPortEstablished(Instances.SettingsViewModel.ConnectAddress);
                 bool bsResult = IfPortEstablished(bsHvAddress);
diff --git a/src/MaaWpfGui/ViewModels/UI/CopilotViewModel.cs b/src/MaaWpfGui/ViewModels/UI/CopilotViewModel.cs
index bc18934a1e..37a178f557 100644
--- a/src/MaaWpfGui/ViewModels/UI/CopilotViewModel.cs
+++ b/src/MaaWpfGui/ViewModels/UI/CopilotViewModel.cs
@@ -43,7 +43,7 @@ namespace MaaWpfGui.ViewModels.UI
     {
         private readonly RunningState _runningState;
         private static readonly ILogger _logger = Log.ForContext<CopilotViewModel>();
-        private List<int> _copilotIdList = new List<int>(); // 用于保存作业列表中的作业的Id，对于同一个作业，只有都执行成功才点赞
+        private List<int> _copilotIdList = new(); // 用于保存作业列表中的作业的Id，对于同一个作业，只有都执行成功才点赞
 
         /// <summary>
         /// Gets the view models of log items.
@@ -500,7 +500,7 @@ namespace MaaWpfGui.ViewModels.UI
                         return;
                     }
 
-                    var fileName = fileInfo.Name.Substring(0, fileInfo.Name.Length - fileInfo.Extension.Length);
+                    var fileName = fileInfo.Name[..^fileInfo.Extension.Length];
                     var stageName = FindStageName(fileName);
 
                     if (string.IsNullOrEmpty(stageName))
@@ -601,7 +601,7 @@ namespace MaaWpfGui.ViewModels.UI
         // ReSharper disable once UnusedParameter.Global
         public void OnDropDownOpened(object sender, EventArgs e)
         {
-            if (!(sender is ComboBox comboBox))
+            if (sender is not ComboBox comboBox)
             {
                 return;
             }
@@ -1005,7 +1005,7 @@ namespace MaaWpfGui.ViewModels.UI
 
         private bool _isVideoTask;
 
-        private readonly List<int> _recentlyRatedCopilotId = new List<int>(); // TODO: 可能考虑加个持久化
+        private readonly List<int> _recentlyRatedCopilotId = new(); // TODO: 可能考虑加个持久化
 
         private bool _couldLikeWebJson;
 
@@ -1133,7 +1133,7 @@ namespace MaaWpfGui.ViewModels.UI
         // ReSharper disable once UnusedParameter.Global
         public void MouseDown(object sender, MouseButtonEventArgs e)
         {
-            if (!(sender is UIElement element))
+            if (sender is not UIElement element)
             {
                 return;
             }
@@ -1156,7 +1156,7 @@ namespace MaaWpfGui.ViewModels.UI
                 return;
             }
 
-            if (!(sender is UIElement element))
+            if (sender is not UIElement element)
             {
                 return;
             }