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指标A
MA5:=MA(C,5);

MA20:=MA(C,20);

公式B

input:inb(20,1,500,1),outb(10,1,500,1),risk(0,0,10,0.1);

//和风版海龟源码

variable:times=0,i=0;

rn:=ema(ref(tr,1),20);

X1:=STKINDI('','A.MA5',0,6,-1);

X2:=STKINDI('','A.MA20',0,6,-1);

A:=valuewhen(holding=0,rn);

rh:=ref(h,1);

rl:=ref(l,1);

h1:hhv(rh,inb);

h2:hhv(rh,outb),linedot;

l1:llv(rl,inb);

l2:llv(rl,outb),linedot;

lotst:asset*risk*0.01/(n*2*multiplier),linethick0;

lots:=if(risk=0,1,lotst); //如果risk取0，表示固定开1手

tbc:=h＜＞l;//判断是否停板

partline(holding＞0,enterprice-2*n);

if barpos＜inb+1 then exit;

if holding=0 and tbc then //不是停板才可以交易

begin

if h＞h1 AND X1>X2 then //开多

begin

buyp:=max(o,h1);

buy(1,lots,limitr,buyp);

times:=1;

while h＞enterprice+n*0.5 and times＜4 do

begin

buyp:=max(o,enterprice+n*0.5);

buy(1,lots,limitr,buyp);

times:=times+1;

end;//连续开仓

end;//开多结束

else if l＜l1 AND X1<X2 then //开空

begin

sellp:=min(o,l1);

buyshort(1,lots,limitr,sellp);

times:=1;

while l＜enterprice-n*0.5 and times＜4 do

begin

sellp:=min(o,enterprice-n*0.5);

buyshort(1,lots,limitr,sellp);

times:=times+1;

end;//连续开仓

end;

end;//holding=0

主题：关于跨周期