input:m(26,5,100,1),k(2,0.4,10,0.1),ss(1,1,1000,1),maxhd(5,1,100,1);
mid: ma(close,m);//布林中轨
upper: mid + k*std(close,m);//布林上轨
lower: mid - k*std(close,m);//布林下轨
//交易条件
开多条件:=cross(c,lower);
//止盈和止损
if c-TAVGENTERPRICEEX2('','',0)>=20*MINDIFF then tsell(1,0,mkt);
if TAVGENTERPRICEEX2('','',0)-c>=10*MINDIFF then tsell(1,0,mkt);
tbuy(开多条件 and TBUYHOLDINGEX('','',2)<maxhd,ss,mkt);