MID:=MA(CLOSE,N);TMP2:=STD(CLOSE,M);TOP:=MID+P*TMP2;BOTTOM:=MID-P*TMP2;BB:(C-TOP)/(TOP-BOTTOM);=============================MID:=MA(CLOSE,N);TMP2:=STD(CLOSE,M);TOP:=MID+P*TMP2;BOTTOM:=MID-P*TMP2;BnadWith:(TOP-BOTTOM)/MID;------------长阳真人