WW:=A((2*CLOSE+HIGH+LOW)/4-MA(CLOSE,20))/MA(CLOSE,20);MM:=DMA(CLOSE,WW);4:= (1-7/100)*MM;VAR4:=(CLOSE,9);LDN:=EXPMA(VAR4*0.86,5);TYP:=(HIGH+LOW+CLOSE)/3;:=(TYP-MA(TYP,14))/(0.015*AVEDEV(TYP,14));TTRR:=EXPMEMA(MAX(MAX(HIGH-LOW,ABS(HIGH-REF(CLOSE,1))),ABS(REF(CLOSE,1)-LOW)),14);HD :=HIGH-REF(HIGH,1);LD :=REF(LOW,1)-LOW;DMP:=EXPMEMA(IF(HD>0&&HD>LD,HD,0),14);DMM:=EXPMEMA(IF(LD>0&&LD>HD,LD,0),14);PDI:=DMP*100/TTRR;:=DMM*100/TTRR;ADX:= EXPMEMA(ABS(MDI-PDI)/(MDI+PDI)*100,6);买底: C<=通道4 AND C<=LDN