Opening price, closing price, highest price and lowest price. These are the most obvious, that is, the surface.

The ratio of upper (lower) shadow line to K-line entity and the ratio of upper and lower shadow line length. This is something noticed at the primary and intermediate levels.

Comprehensively analyze the information mentioned above, and then comprehensively analyze the shape of the K-line before 1- 10 or above. This is a master's field, which is often called bare disk analysis.