X_1:=8; X_2:=100; X_3:=COST(85); X_4:=COST(15); X_5:=X_3-X_4; X_6:=(X_3+X_4)/2; X_7:=X_5/X_6*100X_8:=HHV(HIGH,X_2); X_9:=LLV(LOW,X_2); X_10:=X_8-X_9; X_11:=X_6-X_9低位单峰密集:X_7 AND X_11;