程序优化

libs/main_service_db.py

@@ -192,10 +192,7 @@ def get_task_distributed_step1():
     try:
         with pymysqlAlias() as conn:
                 cursor = conn.cursor(pymysql.cursors.DictCursor)
-                sql = 'select * from task_distributed where status =0 order by priority desc limit 1'
-                if where:
-                    sql += f' and {where}'
-                
+                sql = 'select * from task_distributed where status =0 order by priority desc limit 1 for update'
                 cursor.execute(sql)
                 result = cursor.fetchone()
                 # 关闭游标和连接