解决了文件和目录被分类的问题

Form1.cs

@@ -126,8 +126,7 @@ namespace MD5Create
         // 生成目录结构的 json 表示
         private Dictionary<string, object> GenerateDirectoryJson(string directoryPath, string rootPath, int totalFiles, ref int processedFiles, string excludeFolder, string fileFolder)
         {
-            var filesDict = new Dictionary<string, string>(StringComparer.OrdinalIgnoreCase);
-            var dirsDict = new Dictionary<string, object>(StringComparer.OrdinalIgnoreCase);
+            var result = new Dictionary<string, object>(StringComparer.OrdinalIgnoreCase);
 
             // 处理当前目录文件
             string[] files;
@@ -165,7 +164,7 @@ namespace MD5Create
                     continue;
                 }
 
-                filesDict[fileName] = fileMD5;
+                result[fileName] = fileMD5;
 
                 try
                 {
@@ -237,15 +236,9 @@ namespace MD5Create
                     continue;
 
                 string dirName = Path.GetFileName(dir);
-                dirsDict[dirName] = GenerateDirectoryJson(dir, rootPath, totalFiles, ref processedFiles, excludeFolder, fileFolder);
+                result[dirName] = GenerateDirectoryJson(dir, rootPath, totalFiles, ref processedFiles, excludeFolder, fileFolder);
             }
 
-            var result = new Dictionary<string, object>(StringComparer.OrdinalIgnoreCase)
-            {
-                { "files", filesDict },
-                { "dirs", dirsDict }
-            };
-
             return result;
         }