A little knowledge of K-line every day is recommended to be collected first. The combination of evening star is opposite to the combination of "dawn star" and becomes the turning point of the market reversal and decline. The cross line with a gap at the top finally becomes an "evening star" after the subsequent gap-down big Yin line is formed. If the top is an inverted T-line with a medium-long upper shadow, this combination is vividly called "shooting star".