通达信私藏已久，简单明了的交易信号指标
指导价:=EMA(C,21); aa:=REF(指导价,1); STICKLINE(指导价>aa,指导价,REF(指导价,1),8,10),colorred; STICKLINE(指导价<aa,指导价,REF(指导价,1),8,0),colorgreen;
