lastshusheng

@suiyuex thanks for your anwser I tried with your anwser, but i still got a warning. The difference is that not every time there's a warning, a warning is given...

@suiyuex I can get the latest data when i used **select_db** api. This warning probably only a bug in python3.8.0. I used aiomysql in my django project instead of the...

> transaction @matthewswain Thanks,i have tried it and it worked. I don't know transaction will affect the select statement. I was so stupid.