AA:EMA(CLOSE,8)-EMA(CLOSE,13); BB:EMA(AA,3); DRAWBAND(AA,RGB(240,0,0),BB,RGB(0,255,0)); DRAWICON(CROSS(AA,REF(AA,1)),0-0.02,1); DRAWICON(CROSS(REF(AA,1),AA),0+0.02,2); IF(AA>=REF(AA,1),0,DRAWNULL),COLORFF00FF,LINETHICK6; IF(AA<REF(AA,1),0,DRAWNULL),COLOR00FFFF,LINETHICK6; 通达信简单实用多空买卖指标公式实例图解: 
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