Dayang line is a common K line in stock price chart. Its basic K-line form is that the opening price is near the lowest price in the whole day, and then the price rises all the way to the highest price, indicating that the market is enthusiastic about buying and the gains are not exhausted. When the stock price is in the middle or bottom of the band, the trend is generally vague, and it is difficult to distinguish whether the real trend in the future is up or down. Therefore, the special disk state at the critical moment is more important, and a big positive line or a big negative line plays a decisive role in its future trend. This is the basic setting of the disk. This chart shows that the highest price is the same as the closing price (or slightly higher), and the lowest price is the same as the opening price (or slightly lower). There is no hatch up and down or the hatch is very short. From the beginning of the opening, the buyer actively attacked, and there may be a struggle between the buyer and the seller, but the buyer went all out until the closing. The buyer always has the advantage, which makes the price rise all the way until the close. Represents a strong rebound, the stock market is at a climax, and buyers flock in and buy at unlimited prices. People who hold stocks are reluctant to sell because of their strong purchasing power, and the supply exceeds the demand.