It has been warned since September 28th that the current short-term trend is already bullish, with support at the bottom near 27400 and resistance at the top of 28000. During the day, sell high and buy low. If you are in place, you can enter the market directly. The time node for the change is around the early morning of October 5 !
Night operation strategy:
Do Duo near 27400, defend 27100, target around 27800-28000
Go short near 28,000, defend 28,300, target around 27,600-27,400