2024.2.15! Updated from time to time (starting at 278U)

BTC is still strong and has reached 52,000. At present, it is not cost-effective to chase the spot price. The long-short conversion was completed within the day! ! If BTC reaches 53,000, I will withdraw 280U and get the principal back first. That's it. The medium and long term is not over yet. If the contract has to chase higher, be careful about inserting pins.