input:inb(20,1,500,1),outb(10,1,500,1),risk(2,0,10,0.1);
 //和风版海龟源码
variable:times=0,i=0,n=0;
 rn:=ema(ref(tr,1),20);
 n:=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 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 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
 if holding＞0 and tbc then //已有多仓
begin
 exitlongp:=max(enterprice-2*n,l2);
 if l＜exitlongp and enterbars＜＞0 then //出场
begin
 exitp:=min(o,exitlongp);
 sell(1,0,limitr,exitp);
 times:=0;
 end;//出场
else
 begin
 while h＞enterprice+n*0.5 and times＜4 do //开多
begin
 buyp:=max(o,enterprice+n*0.5);
 buy(1,lots,limitr,buyp);
 times:=times+1;
 end;//连续开仓
end;//else

 end;//holding＞0
 if holding＜0 and tbc then //已有空仓
begin
 exitlongp:=min(enterprice+2*n,h2);
 if h＞exitlongp and enterbars＜＞0 then //出场
begin
 exitp:=max(o,exitlongp);
 sellshort(1,0,limitr,exitp);
 times:=0;
 end;//出场
else
 begin
 while l＜enterprice-n*0.5 and times＜4 do //开多
begin
 sellp:=min(o,enterprice-n*0.5);
 buyshort(1,lots,limitr,sellp);
 times:=times+1;
 end;//连续开仓
end;//else
 end;//holding＜0