diff --git a/py/GAT.py b/py/GAT.py
index 34bf75a..9e842ff 100644
--- a/py/GAT.py
+++ b/py/GAT.py
@@ -636,7 +636,7 @@ def remove_duplicates(input_file, output_file):
             if genre_line:
                 output_lines.append(line)
     # 将结果写入输出文件
-    with open(output_file, 'a', encoding='utf-8') as f:
+    with open(output_file, 'w', encoding='utf-8') as f:
         f.writelines(output_lines)
     print("去重后的行数：", len(output_lines))