. Under normal circumstances, up to 89 lines are enough.

1. Short-term attack system, mainly look at: 5th, 10th, 21st line (some stocks will also use the 48th line because they are in a relatively long attack cycle trend.) 2. Mid-term attack system, mainly looking at: 48-day, 89-day, 144-day lines (some stocks are in a relatively long attack cycle trend, so they will also use the 288-day line.) 3. Long-term attack system, mainly Look at: 144th, 288th, 576th line.

Among these three moving average systems, the first two systems (the "short-term attack system" and the "mid-term attack system" moving average) are generally used the most. If the stock selection principle of "selecting the strong and eliminating the weak" is used as the band operation standard, generally only the moving average of the "short-term attack system" is mainly used.

2. 60-minute chart: The moving average system on the 60-minute chart can be changed to 21, 48, 89, and 144 lines.

3. 30-minute chart: The moving average system on the 30-minute chart can be changed to 48, 89, 144, 288 lines.

4. 15-minute chart: The moving average system on the 15-minute chart can be changed to 89, 144, 288, 576 lines.

5. 5-minute chart: The moving average system on the 5-minute chart can be changed to 89, 144, 288, 576 lines. ,

6. Weekly line: The weekly line can be changed to 5, 10, 21, 48 lines (sometimes 89 and 144 lines are also used in large wave analysis).