多空布林带收粘选股公式N:=11;M:=6;M2:=5;CV:=CLOSE;BBIBOLL:=(MA(CV,3)+MA(CV,6)+MA(CV,12)+MA(CV,24)/4;UPR:=BBIBOLL+M*STD(BBIBOLL,N);DWN:=BBIBOLL-M*STD(BBIBOLL,N);XG:(UPR-DWN)/DWN)*100BBIBOLL;参数是默认的11，,6。M2是上下轨距离参数可调