【Position, volume and price formula】:
1. When the price rises, the position increases, and the trend is expected to rise
2. When the price rises, the position decreases, and attention is paid to the peak
3. When the price falls, the position increases, and the price continues to fall
4. When the price falls, the position decreases, and the rebound opens a short position
5. When the price closes, the position increases, and the volume is balanced
6. When the price closes, the position decreases, and the market reverses
