Support account function. As long as you can number the program, set the principles of opening and closing positions, and increase and decrease positions, you can realize automatic trading. But overall, the reliability is not necessarily good. In fact, some people are responsible for many programmed transactions, just to prevent unexpected situations, such as meeting the conditions, but the computer did not place orders according to the procedures, and so on. Real automated trading should be difficult to achieve. Imagine that if all computers are trading, financial derivatives will lose their charm, and price fluctuations will be simple or even obvious. At this time, smart traders will have a great advantage. Regarding automated trading, we can look at the intraday trend of the external market. Programmatic trading is obvious, and experienced and smart traders can often use some characteristics of programming to buy/sell in advance.