VAR1:=MA(CLOSE,5);
VAR2:=MA(CLOSE,10);
VAR3:=MA(CLOSE,20);
VAR4:=MA(CLOSE,30);
VAR5:=(VAR1+VAR2+VAR3+VAR4)/4;
VAR6:=(VAR5-REF(VAR5,5))/REF(VAR5,5)*1500;
VAR7:=(VAR5-REF(VAR5,5))/REF(VAR5,5)*1500;
VAR8:=EMA(VAR6,8);
短买:FILTER(VAR6>REF(VAR6,1) AND VAR6>0 AND VAR8<0,30);