圖表交易 holding有問(wèn)題　[金字塔]

如下開平正常

aHOLDING:=HOLDING,linethick0;;;
SELLSHORT(spK1  and aHOLDING<0,ab,market); //交易系統(tǒng)之平空操作
BUY(sPK1 and  HOLDING=0 ,ab,market);//交易系統(tǒng)之開多操作
SELL(bPK1 and aHOLDING>0,ab,market); //交易系統(tǒng)之平多操作
BUYSHORT(bPK1 and  HOLDING=0 ,ab,market); //交易系統(tǒng)之開空操作-

如下不能開倉(cāng)

aHOLDING:=HOLDING,linethick0;;;
SELLSHORT(spK1  and aHOLDING<0,ab,market); //交易系統(tǒng)之平空操作
BUY(sPK1 and  aHOLDING=0 ,ab,market);//交易系統(tǒng)之開多操作
SELL(bPK1 and aHOLDING>0,ab,market); //交易系統(tǒng)之平多操作
BUYSHORT(bPK1 and  aHOLDING=0 ,ab,market); //交易系統(tǒng)之開空操作-

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