m:=26;
n:=2;
c1:=callstock(\'srx00\',vtclose,datatype);
c2:=callstock(\'m00\',vtclose,datatype);
jc:=c1-c2;
ma60:=stkindi(\'\',\'ma.ma4\',0,datatype);
MID : MA(jc,M),noaxis;
UPPER: MID + N*STD(jc,M),noaxis;
LOWER: MID - N*STD(jc,M);
,noaxis
if jc<lower then buy(holding=0,1,market);
if h>ma60 then sell(1,0,market);
但布林通道显示的有问题