X_1:=6; X_2:=4; X_3:=13; X_4:=(3*CLOSE+LOW+OPEN+HIGH)/6; X_5:=Wma(vol,X_3); X_6:=WMA(AMOUNT,X_3); X_7:=X_6/X_5/100; X_8:=(X_4-X_7)/X_7*100; 短底:X_8<(-6);
