趋势2:EMA(EMA(EMA(C,5)-REF(EMA(C,5),1),5),5); 趋势4:EMA(EMA(EMA(C,4)-REF(EMA(C,4),1),4),4); DRAWICON(CROSS(趋势4,趋势2),趋势2,7); DRAWICON(CROSS(趋势4,REF(趋势4,1))AND 趋势4 趋势2,趋势2,7);