Let's talk about K-line chart first: K-line chart is a kind of technical analysis, which was first created by the Japanese in19th century. It was used by Japanese rice market merchants at that time to record the market and price fluctuation of rice market, including opening price, closing price, highest price and lowest price, with positive candle representing the day's rise and negative candle representing the day's decline. This chart analysis method was particularly popular in China and even Southeast Asia at that time. Because the chart drawn in this way looks like candles, and these candles are black and white, it is also called yin-yang line chart. Through the K-line chart, people can completely record the market performance every day or at a certain time. After a period of trading, the stock price forms a special region or form on the chart, and different forms show different meanings. Some regular things can be found from these morphological changes. The forms of K-line chart can be divided into reverse form, arrangement form, gap and trend line. The post-K-line chart is introduced into the stock market and futures market because of its ingenious and unique drawing method. \x0d\ The drawing method of K-line chart of stock market and futures market includes four data: opening price, highest price, lowest price and closing price. All K-lines are centered around these four data, reflecting the general situation and price information. If you put the daily K-line chart on a piece of paper, you can get the daily K-line chart, and you can also draw the weekly K-line chart and the monthly K-line chart. If investors need to make short-term investments, they can use short-term charts for price analysis, such as 5-minute charts, 30-minute charts and 60-minute charts. \x0d\ So, from the origin of K-chart, do you understand what K-chart is? If the explanation in the last paragraph is written in one sentence, and all other shivering explanations are removed, the K-line chart is used to record the market and price. \x0d\ K-line is no different from recording today's opening price, highest price, lowest price and closing price directly with a pen, but the K-line chart charts it and produces many theories and various indicators. \x0d\ If you really understand the origin of the K-line and its reason, do you still expect to see the secret of stock price rise and fall in one more recorded data? Can you see anything from it? I think you have understood. What I want to say is that the K-line chart is only a form of price record, and it does not contain the secret that the stock price will rise or fall in the future. \x0d\ Of course, the K-line chart or price record is not useless, which is meaningful and valuable for long-term analysis and cycle analysis. \x0d\ We can judge whether the periodicity of an enterprise is strong, weak or counter-cyclical through the data analysis of 5- 10 years, and finally judge the trading opportunity of this enterprise. In this regard, it is certain to do some price statistics. Of course, this can also be achieved by other data recording methods, but there is already a convenient K-line form, and we don't need to record another one ourselves. This is only the function of price record, not the unique function of K-line chart.