主题：开仓后10天平仓，请教如何以代码实现？

days_after_buyshort: TYPEBAR(1,3),LINETHICK0;

Profit:C-AVGENTERPRICE>24%AVGENTERPRICE,LINETHICK0;

Lost:AVGENTERPRICE-C>6%AVGENTERPRICE,LINETHICK0;

sellshort_condition: days_after_buyshort=20 and holding<0 OR Profit OR Lost,LINETHICK0;

IF sellshort_condition THEN begin

sellshort(1,0,MARKET);