The advantage of the moving average system itself is stability; The disadvantage is that it is too stable, so it is too slow and lags behind the short-term fluctuation of prices. Needless to say, the unweighted moving average system, even the weighted fast and slow lines, often show a lagging disadvantage in the ultra-high liquidity foreign exchange market and commodity futures market.

The advantage of technical indicators without exception lies in their objective and stable display information, on the other hand, the simple K-line can not be displayed by a specific algorithm; The disadvantage is that how to guide the actual operation through it requires people's subjective screening and judgment.

There are related blog posts in my blog. If you have time, you can read a few articles on trading strategy, so I won't go into details here.