Take the shock strategy as an example, the front is high and then empty, and the front is low and then more orders are opened. Empty orders can be closed when approaching the previous low, and multiple orders can be closed when approaching the previous high. If the price of empty orders breaks through the previous high point, it is necessary to close the position and stop the loss. If the price of multiple orders falls below the previous low, it is also necessary to close the position and stop the loss.

This is a very simple example. Although it can't be completely used in actual combat, the general framework is similar. In practice, there are so many price changes that it is difficult to describe them completely in a few words or even one sentence.