1. Left-handed trading: see-the-price trading mode. In a certain period of time, a transaction that enters the market directly before the periodic high (or low) of the market appears, that is, the transaction on the left side of the potential high (or low) of the market belongs to left-handed trading.

2. Right-side trading: refers to the signal trading mode, that is, the trading on the right side of the market stage high (low) within a certain period of time, which is the right-side trading after confirming that the high (low) has appeared according to certain judgment standards.