Update app.py

Fix translation by using source and target parameters

app.py

@@ -20,11 +20,15 @@ try:
                 summary_text = response.generated_text if hasattr(response, 'generated_text') and response.generated_text else response.summary_text if hasattr(response, 'summary_text') and response.summary_text else None
                 if not summary_text:
                     return "摘要生成失败，属性缺失。"
-                # 将语言信息嵌入输入，<2en>表示英文，<2zh>表示中文
-                input_for_translation = f"<2en> {summary_text} <2zh>"
-                translated_response = translation_client.translation(input_for_translation)
+                # 移除语言标记，直接调用翻译
+                translated_response = translation_client.translation(summary_text, source="en", target="zh")
                 print(f"Translation API Response: {translated_response}")
-                return translated_response if translated_response else "翻译失败，请重试。"
+                if hasattr(translated_response, 'translation_text') and translated_response.translation_text:
+                    return translated_response.translation_text
+                elif hasattr(translated_response, 'generated_text'):
+                    return translated_response.generated_text
+                else:
+                    return "翻译失败，请重试。"
             except Exception as e:
                 error_details = traceback.format_exc()
                 print(f"尝试失败，错误类型: {type(e).__name__}, 错误详情: {str(e)}, 堆栈: {error_details}")