The first one is to choose consideration transaction, which basically costs a jump but the transaction speed is fast. If you choose the latest price, you generally don't have to pay the jump, but the transaction speed is slow and it is easy to miss the market.

The second is to set a conditional order stop loss order, which may also appear. When the stop loss is set at 980 points, the stop loss is triggered when the price touches 980 points, but the stop loss transaction is after the trigger, so there may be slippage at this time.