fix:

ViewModel/Configuration/LevelConfigVM.cs

@@ -1,25 +1,22 @@
 using EncryptFileTool.Entity;
 using HandyControl.Controls;
+using log4net;
 using Newtonsoft.Json;
-using Newtonsoft.Json.Converters;
-using NPOI.SS.Formula.Functions;
-using SharpDX;
 using SparkClient.Model.Helper;
-using System;
+using SparkClient.ViewModel.Grading;
 using System.Data;
-using System.Drawing;
 using System.IO;
-using System.Linq.Expressions;
 using System.Windows;
 using System.Windows.Controls;
-using System.Windows.Controls.Primitives;
 using System.Windows.Data;
 using System.Windows.Input;
+using MessageBox = SparkClient.Views.Dialog.MessageBox;
 
 namespace SparkClient.ViewModel.Configuration;
 
 public class LevelConfigVM : BaseViewModel
 {
+    private static readonly ILog Logger = LogManager.GetLogger(typeof(GradingResultVM));
     public ICommand ChangeShapeModelCommand { get; }
     public ICommand ChangeInstituteModelCommand { get; }
     public ICommand LoadLevelConfigCommand { get; }
@@ -107,6 +104,8 @@ public class LevelConfigVM : BaseViewModel
     }
 
     private void setStandardList(DataTable gradeList, DataTable standardList)
+    {
+        try
         {
             Style cellStyle = new Style(typeof(TextBlock));
             Setter setSellStyle = new Setter(TextBlock.HorizontalAlignmentProperty, HorizontalAlignment.Center);
@@ -146,7 +145,8 @@ public class LevelConfigVM : BaseViewModel
                 if (standardList != null)
                 {
                     var standardRules = standardList.AsEnumerable().GroupBy(r => r["RULE_ID"].ToString());
-                foreach (var ruleStandardList in standardRules) {
+                    foreach (var ruleStandardList in standardRules)
+                    {
                         var standards = ruleStandardList.AsEnumerable().GroupBy(r => r[STANDARD_NAME].ToString());
                         foreach (var standard in standards)
                         {
@@ -201,7 +201,8 @@ public class LevelConfigVM : BaseViewModel
 
                                     var arr = value.Split("\r\n", 2);
                                     rowInfo.Add(arr[0]);
-                                if (arr.Length > 1) {
+                                    if (arr.Length > 1)
+                                    {
                                         rowInfo.Add(arr[1]);
                                     }
                                     else
@@ -283,6 +284,8 @@ public class LevelConfigVM : BaseViewModel
                             }
                             string ruleId = ruleStandardList.Key;
                             string prefix = "";
+                            if (ruleId != null && !string.IsNullOrEmpty(ruleId))
+                            {
                                 string ta = ruleId.Substring(ruleId.Length - 2);
                                 if (ruleId.StartsWith("GB"))
                                 {
@@ -299,6 +302,7 @@ public class LevelConfigVM : BaseViewModel
                                         prefix = "[台宽比=" + ruleId.Substring(ruleId.Length - 2) + "] ";
                                     }
                                 }
+                            }
                             rowInfo.Insert(0, prefix + standard.Key);
                             var showRow = StandardList.NewRow();
                             showRow.ItemArray = rowInfo.ToArray();
@@ -308,6 +312,12 @@ public class LevelConfigVM : BaseViewModel
                 }
             }
         }
+        catch (Exception ex)
+        {
+            new MessageBox().Show($"{MultilingualHelper.getString("ApplicationError")}{ex.Message}");
+            Logger.Error($"全局异常捕获：{ex.Message}", ex);
+        }
+    }
     private DataGridColumn GetDataGridColumn(string Header,string Binding,int lineCount = 2)
     {
         //Style cellStyle = new Style(typeof(TextBlock));
@@ -449,7 +459,7 @@ public class LevelConfigVM : BaseViewModel
         }
         catch (Exception ex) {
             DataBaseHelper.rollback();
-            Console.WriteLine(ex.Message);
+            Logger.Error($"全局异常捕获：{ex.Message}", ex);
             Growl.Error(save_fail_message);
         }
     }
@@ -467,6 +477,8 @@ public class LevelConfigVM : BaseViewModel
     /// </summary>
     /// <param name="param"></param>
     public void LoadLevelConfig(object param)
+    {
+        try
         {
             InstitutesEnabled = false;
             ShapesEnabled = false;
@@ -532,6 +544,12 @@ public class LevelConfigVM : BaseViewModel
                 setStandardList(gradeInfos, standardInfos);
             }
         }
+        catch (Exception ex)
+        {
+            new MessageBox().Show($"{MultilingualHelper.getString("ApplicationError")}{ex.Message}");
+            Logger.Error($"全局异常捕获：{ex.Message}", ex);
+        }
+    }
 
     /// <summary>
     /// 切换规则响应

ViewModel/Grading/GradingResultVM.cs

@@ -654,7 +654,7 @@ public class GradingResultVM : BaseViewModel
                 return;
             }
         }
-        if (!File.Exists(getFilePath()))
+        if (!Directory.Exists(getFilePath()))
         {
             new MessageBox().Show(MultilingualHelper.getString("FilePathNotExists"));
             return;