diff --git a/app.py b/app.py
index 41a9be5b..212371c6 100644
--- a/app.py
+++ b/app.py
@@ -37,7 +37,7 @@ def robust_download(url, ua, max_retries=3):
             if attempt == max_retries - 1:
                 print(f"❌ 无法下载: {url}. 错误: {str(e)}")
                 return None
-            print(f"正在重试 {url} (第 {attempt+1} 次)")
+            print(f"正在重试 {url} (第 {attempt + 1} 次)")
 
 def process_channel(line):
     if any(f'group-title="{g}"' in line for g in DELETE_GROUPS):
@@ -56,9 +56,9 @@ def process_channel(line):
 
     for char in DELETE_CHARS:
         line = line.replace(char, "")
-    
+
     line = re.sub(r'cctv-?', 'CCTV', line, flags=re.IGNORECASE)
-    
+
     return line
 
 def parse_m3u(content):
@@ -96,21 +96,24 @@ def generate_m3u_output(channels):
     return "\n".join(output)
 
 def generate_txt_output(channels):
-    """
-    Generates a plain text output for the given channels.
-    Each channel will be written in the format: "Channel Name: URL".
-    """
-    output_lines = []
+    group_dict = defaultdict(list)
     for channel in channels:
-        # Extract channel name from metadata
-        if match := re.search(r'tvg-name="([^"]+)"', channel["meta"]):
-            channel_name = match.group(1)
+        if match_name := re.search(r'tvg-name="([^"]+)"', channel["meta"]):
+            channel_name = match_name.group(1)
         else:
             channel_name = "Unknown Channel"
-        
-        # Append formatted line to output
-        output_lines.append(f"{channel_name}: {channel['url']}")
-    
+        if match_group := re.search(r'group-title="([^"]+)"', channel["meta"]):
+            group_name = match_group.group(1)
+        else:
+            group_name = "Unknown Group"
+        group_dict[group_name].append(f"{channel_name}: {channel['url']}")
+
+    output_lines = []
+    for group, channel_list in group_dict.items():
+        output_lines.append(f"{group}:")
+        for channel in channel_list:
+            output_lines.append(f"  {channel}")
+        output_lines.append("")
     return "\n".join(output_lines)
 
 def save_file(content, filename):
@@ -129,21 +132,20 @@ def save_file(content, filename):
 
 def main():
     all_channels = []
-    
+
     print("开始下载和处理数据源...")
     for source in M3U_SOURCES:
         content = robust_download(source["url"], source["ua"])
         if not content:
             print(f"[×] {source['name']} 无法处理，跳过")
             continue
-        
+
         channels = parse_m3u(content)
         processed = []
         for ch in channels:
-            # 修复: 检查 "meta" 键是否存在
-            if "meta" in ch and (cleaned_meta := process_channel(ch["meta"])):
+            if cleaned_meta := process_channel(ch["meta"]):
                 processed.append({"meta": cleaned_meta, "url": ch["url"]})
-        
+
         all_channels.extend(processed)
         print(f"[✓] {source['name']} 处理完成 ({len(processed)} 频道)")
 
@@ -157,8 +159,9 @@ def main():
 
     txt_content = generate_txt_output(all_channels)
     save_file(txt_content, "live.txt")
-    
+
     print(f"\n处理完成！有效频道总数: {len(all_channels)}")
 
 if __name__ == "__main__":
     main()
+