主题：后台程序不下单，请教！

ma5:=ma(c,5);

ma10:=ma(c,10);

if cross(ma5,ma10) and holding=0 then buy(1,1,market);

if cross(ma5,ma10) and holding=0 then tbuy(1,1,mkt);

if cross(ma10,ma5) and holding=1 then sell(1,0,marke);

if cross(ma10,ma5) and holding=1 then tsell(1,1,mkt);