Update FileName.cs

Packages/Tools/Runtime/ModuleTools/FileName.cs

@@ -13,10 +13,10 @@ namespace MuHua {
 		/// <summary> 文件夹 </summary>
 		public string directory;
 		/// <summary> 扩展名 </summary>
-		public string extensions = "json";
+		public string extension = "json";
 
 		/// <summary> 路径 </summary>
-		public string PATH => $"{directory}/{name}.{extensions}";
+		public string PATH => $"{directory}/{name}.{extension}";
 
 		public static FileName Create(string name) {
 			return new FileName() { name = name, directory = SaveTool.PATH };
@@ -25,13 +25,14 @@ namespace MuHua {
 			return new FileName() { name = name, directory = directory };
 		}
 		public static FileName Create(string name, string directory, string extensions) {
-			return new FileName() { name = name, directory = directory, extensions = extensions };
+			return new FileName() { name = name, directory = directory, extension = extensions };
 		}
 		public static FileName Parse(string path) {
 			string name = Path.GetFileNameWithoutExtension(path);
 			string directory = Path.GetDirectoryName(path);
-			string extensions = Path.GetExtension(path);
-			return new FileName() { name = name, directory = directory, extensions = extensions };
+			string extension = Path.GetExtension(path);
+			string ext = string.IsNullOrEmpty(extension) ? "json" : extension.TrimStart('.');
+			return new FileName() { name = name, directory = directory, extension = ext };
 		}
 	}
 }