标题：请帮忙编写交易系统

60分钟k线中,ma10与ma16交叉做多,然后引用30分钟k线的ma10与ma12,如果ma12下穿ma10,就平多.谢谢

ma10_60min:=STKINDI('','MA.MA1(10,16,20,60)',0,5);
ma16_60min:=STKINDI('','MA.MA2(10,16,20,60)',0,5);

ma10_30min:=STKINDI('','MA.MA1(10,12,20,60)',0,4);
ma12_30min:=STKINDI('','MA.MA2(10,12,20,60)',0,4);
if cross(ma10_60min,ma16_60min) then buy(holding=0,1,market);

if cross(ma10_30min,ma12_30min) then sell(1,0,market);