K-line chart is a weighted average line.
The colors in the K-line chart represent different periods and can be set by yourself. For example, there are 30-minute lines, 60-minute lines, daily lines, 30-day lines and so on.
Commonly used K-charts are weighted averages of 5 days, 10, 20, 60 days. Take your time!
This is a long-term process of looking at the market, so break down yourself in detail and go online to find it! The trend of some K-lines is a summary of past experience, but it is actually just a reference.