多周期MA/EMA指标 [MA/EMA 20, 60, 120]

This Pine Script plots the 20-period, 60-period, and 120-period Moving Averages (MA) and Exponential Moving Averages (EMA) on the chart. It helps identify short-term, medium-term, and long-term trends by showing how price interacts with different timeframes of moving averages. The script assists in analyzing trend reversals and smoothing price data to make informed trading decisions.