mtm:=close-ref(close,5);
tsi1:ema(ema(mtm,5),5)/ema(ema(abs(mtm),5),5)*100;
tsi2:ema(ema(mtm,10),10)/ema(ema(abs(mtm),10),10)*100;
tsi3:ema(ema(mtm,20),20)/ema(ema(abs(mtm),20),20)*100;
买:if(tsi3<-45 and cross(tsi2,tsi3),55,00),linethick2,colorred;
卖:if(tsi1>50 and cross(tsi2,tsi1),-35,00),linethick2,colorgreen;
卖出:if(cross(tsi2,tsi1)and tsi1>50 ,-50,0),linethick2,colorff0000; 
买入:if(cross(tsi2,tsi3)and tsi3<-45 ,20,0),linethick2,color00ffff;