This question raised by my brother is more difficult. Even if you really have it yourself, it will be more difficult to operate. Stocks will be matched every six seconds, and futures will be displayed directly every second. You can see this information from the time-sharing chart and real-time transaction details, which may be the most detailed. In addition, there is a minute K-line or the fifth K-line, as shown in your chart, which is the rising trilogy. If the trend of the next day is more than one-third or two-thirds of the last positive line, it is long, because this is a buying signal. If you send a buy signal together with other trading volume, moving average and technical indicators, the reliability will be much stronger. If you want a greater chance of winning, I think you should not look for more subtle technical judgments, but should support him from news, fundamentals and market conditions. In this way, you can win the game.