MACD can go directly to Youku or Baidu and search for "Night Cloud MACD Foreign Exchange Video" to find the whole series of learning tutorials. At present, the available open MACD videos are the most comprehensive. The usage of KDJ is mainly a deviation from the short-term trend. In the short term, K and D stay above J for a long time, and the golden fork comes into play and the dead fork stands firm. The main parameters used are short-term 9, 3, 3; Center line13,5,5. VOL needs to be analyzed in combination with the strength of K-line pull-up, but the general direction still uses 5 10 as the trend reference. For example, MA5 in VOL wears MA 10, which means that quantity and price come first, and there may be a wave of pull-up. But these three systems are not comprehensive in a few words, and need to combine some video and text materials for a period of time. What I just said is the big principle.