主题：比较价格的图表程序

TR1: EMA(EMA(EMA(CLOSE,P),P),P);
TRIX : (TR1-REF(TR1,1))/REF(TR1,1)*100;
TRMA1 :  MA(TRIX,N);
jc:=cross(trix,trma1);
sc:=cross(trma1,trix);
ma20:ma(c,20);
if jc and c<ma20 and holding=0 then buy(1,1,limitr,c);

if c>ma20 and holding=0 then buy(1,1,limitr,ma20);
if sc and holding>0 then sell(1,1,market);