fix: 修正代理数据提取逻辑以返回参数字段

DB.py

@@ -115,7 +115,8 @@ class DBVidcon:
         sql = "SELECT parameter FROM proxy_agent WHERE rn = %s LIMIT 1"
         self.cursor.execute(sql, (rn,))
         result = self.cursor.fetchone()
-        return result[0] if result else None
+        print(result)
+        return result['parameter'] if result else None
 
     def rollback_records(self, raws):
         if isinstance(raws, str):