1. Long positions, in the main upward trend, should hold long positions and short positions.

2. Long-term lock positions, in the main downward trend, should hold long-term short positions.

3. shock lock, first of all, we must judge the shock situation and how much this will make up. If you don't understand, go to futures experts. com。

4. Lock the warehouse all night. When the trend cannot be determined, you can lock the profit and risk by locking the warehouse.