请教老师：

开仓条件h>h20,

当h>h20时，如果前20周期内有pm<-20 or mp <-20时，则以h>h20作为开仓信号。这个怎么写，谢谢！

RUNMODE:0;

INPUT : n(20,1,100,1);
INPUT : p(14,1,100,1);

tr1 := sum(max(max(high - low,abs(high-ref(close,1))),abs(low - ref(close, 1))),p); 
hd := high - ref(high, 1);
ld := ref(low, 1) - low; 
dmp := sum(if(hd>0 and hd>ld,hd,0),p);
dmm := sum(if(ld>0 and ld>hd,ld,0),p);
pdi := ma(dmp*100/tr1,18);
mdi := ma(dmm*100/tr1,18); 
pm := pdi-mdi;
mp := mdi-pdi;

h20 := ref(hhv(high,n),1);
l20 := ref(llv(low,n),1);

//账户信息：
资产:ASSET,NOAXIS,COLORRED,LINETHICK2;
可用现金:CASH(0),PRECISION0,NOAXIS,LINETHICK0;
持仓:HOLDING,LINETHICK0;
胜率:PERCENTWIN,LINETHICK0;
交易次数:TOTALTRADE,LINETHICK0;

此主题相关图片如下：qq图片20131227161452.jpg

老师，请问为是很多地方一根K线同时出现买卖信号。麻烦帮调试下，是什么原因。谢谢！

RUNMODE:0;

INPUT : n(20,1,100,1);
INPUT : p(14,1,100,1);

tr1 := sum(max(max(high - low,abs(high-ref(close,1))),abs(low - ref(close, 1))),p); 
hd := high - ref(high, 1);
ld := ref(low, 1) - low; 
dmp := sum(if(hd>0 and hd>ld,hd,0),p);
dmm := sum(if(ld>0 and ld>hd,ld,0),p);
pdi := ma(dmp*100/tr1,18);
mdi := ma(dmm*100/tr1,18); 
pm := pdi-mdi;
mp := mdi-pdi;

h20 := ref(hhv(high,n),1);
l20 := ref(llv(low,n),1);

//当最高价突破20周期内的最高点时，前20个周期内出现PM或MP小于-20，则以h>h20作为买入信号；
if h>h20 and (barslast(pm<-20)<=20 or barslast(mp<-20)<=20) then
begin
sellshort(holding<0,0,thisclose);
buy(holding=0,1,thisclose);
end

//当最低价突破20周期内的最低点时，前20个周期内出现PM或MP小于-20，则以l<l20作为卖出信号；
if l<l20 and (barslast(pm<-20)<=20 or barslast(mp<-20)<=20) then
begin
sell(holding>0,0,thisclose);
buyshort(holding=0,1,thisclose);
end

//账户信息：
资产:ASSET,NOAXIS,COLORRED,LINETHICK2;
可用现金:CASH(0),PRECISION0,NOAXIS,LINETHICK0;
持仓:HOLDING,LINETHICK0;
胜率:PERCENTWIN,LINETHICK0;
交易次数:TOTALTRADE,LINETHICK0;