K-line chart can be divided into: positive line, negative line, lower shadow line, lower shadow line, upper shadow line, lower cross line, inverted cross line, cross star, straight line and so on. Yang line is divided into big Yang line and small Yang line, and Yin line is also divided into big Yin line and small Yin line. 1. Yangxian line: the opening price was close to the lowest price in the whole day, and then it rose all the way to the highest price, indicating that the market buying enthusiasm was high and the gains were not exhausted; 2. Yinxian: The opening price is close to the highest price in the whole day, and then the price falls all the way to the lowest price, indicating that the market has a strong downward trend, especially in the high-priced area, which is more dangerous; 3. Lower shadow line: the price once fell sharply, but supported by buying power, the price rebounded and closed at the highest price, which was a strong form; 4. Lower shadow line: After the price once fell sharply, but supported by buying power, the price rebounded upward. Although the closing price is still lower than the opening price, it can also be regarded as strong. However, it appears in the high-priced area, indicating that the price has a callback requirement, and attention should be paid to selling; 5. Upper shadow line: the price rises and falls, and the increase is blocked. Although the closing price is still higher than the opening price, there is resistance above it, which can be regarded as weak; 6. upper shadow line: the price is blocked and the increase is blocked. Although the closing price is still higher than the opening price, there is resistance above it, which can be regarded as weak; 7. Cross line: After the opening, the price dropped sharply, but it was supported at the low level. The buying below was proactive and finally closed near the highest price, showing strong performance. When the long shadow line appears in the low-priced area, it is often an important inversion signal; 8. Inverted crosshair: After the price skyrocketed, it encountered strong resistance at a high level and was finally forced to close the position near the opening price. Although there is a desire to attack, the market has repair requirements and is weak. When the reverse reticle appears in the high-priced area, it is often an important change signal; 9. Cross star: The buyers and sellers are evenly matched and the trend is stable; However, in a strong city, the cross star often becomes the intersection of market power transformation, and the market outlook may change; 10 word line: the four-in-one k line reflects that the market turnover is light and it is difficult to have a big change in the market outlook; However, if it appears in the daily limit (down limit), it means that the power gap between buyers and sellers is too big, and the direction of the market outlook is clear, which is difficult to reverse in the short term.