diff --git a/DownKyi.Core/Utils/Format.cs b/DownKyi.Core/Utils/Format.cs
index 17d3547..178ca78 100644
--- a/DownKyi.Core/Utils/Format.cs
+++ b/DownKyi.Core/Utils/Format.cs
@@ -125,36 +125,15 @@ public static class Format
     public static string FormatFileName(string originName)
     {
         var destName = originName;
-
-        // Windows中不能作为文件名的字符
-        // destName = destName.Replace("\\", " ");
-        // destName = destName.Replace("/", " ");
-        // destName = destName.Replace(":", " ");
-        // destName = destName.Replace("*", " ");
-        // destName = destName.Replace("?", " ");
-        // destName = destName.Replace("\"", " ");
-        // destName = destName.Replace("<", " ");
-        // destName = destName.Replace(">", " ");
-        // destName = destName.Replace("|", " ");
-
-        // 转义字符
-        // destName = destName.Replace("\a", "");
-        // destName = destName.Replace("\b", "");
-        // destName = destName.Replace("\f", "");
-        // destName = destName.Replace("\n", "");
-        // destName = destName.Replace("\r", "");
-        // destName = destName.Replace("\t", "");
-        // destName = destName.Replace("\v", "");
         destName = Path.GetInvalidFileNameChars().Aggregate(destName, (current, c) => current.Replace(c.ToString(), string.Empty));
 
-        // 控制字符
+        var cleanedName = destName
+             .SkipWhile(c => c == ' ' || c == '.')
+             .Reverse()
+             .SkipWhile(c => c == ' ' || c == '.')
+             .Reverse()
+             .ToArray();
 
-
-        // 移除前导和尾部的空白字符、dot符
-        destName = destName.Trim();
-        destName = destName.Trim('.');
-
-        // 如果只有空白字符、dot符
-        return destName is " " or "." ? "[empty title]" : destName;
+        return new string(cleanedName.Length == 0 ? "[empty title]" : cleanedName);
     }
 }
\ No newline at end of file