如何在wld 设置自动交易？

我按照wld 说明(Preparing for Automated Trading)
进行了以下几步设置:
1.定义chartscript （wld附带）
{ A Real-Time testing script that issues buys and sells every other bar }

const MYPORT = ''; // Ensure an empty string, not a white space
var BBAvg,BBAvgDn, Bar, P, Period: integer;
var BasisPrice, Profit, Limit: Float;

Period := 5;
Profit := 0.0175;
Limit := 0.01;

BBAvg := BBandLowerSeries(#Close, Period, 1);
BBAvgDn := MultiplySeriesValue(BBAvg, (1-Limit));

EnableTradeNotes(False, False, False);
PlotSeries( BBAvg, 0, #Silver, #Thick );
PlotSeries( BBAvgDn, 0, #Red, #Thick );

for Bar := 2*Period to BarCount - 1 do
begin
PortfolioSynch( Bar, MYPORT );
if ActivePositionCount = 0 then
BasisPrice := 0;
if ActivePositionCount > 0 then

if SellAtLimit(Bar+1, BasisPrice*(1+Profit), #All, 'Sell') then
BasisPrice := 0;

if BuyAtLimit( Bar + 1, @BBAvgDn[Bar], 'Long') then
begin
p := ActivePositionCount;
BasisPrice := (BasisPrice*(P-1) + PositionEntryPrice(LastPosition))/P;
end;

end; ;
２．在order manager 选定了自已做的broker 接口，linke portfolio 选定已经设好的 帐户＂test" (里面只有cash :11000)

3.打开realtime scan
在交易时段中scanresult 生成了几个结果，但这些结果的share 和我自定帐户＂test"内的现金可买数对不上！
如：其中一结果为share 31000 Price 5.2 ,但我的现金只有11000.

不知是否与rt scan 内positionsizing 设置有关，应该如何才能设置自动交易与自定义帐户关连？

 

自己顶一下