主题：我想用这个实现一个程序有问题吗

ma21:stkindi('','ma.ma1(21)',0,6,);
ma13:stkindi('','ma.ma1(13)',0,6,);
ma55:stkindi('','ma.ma1(55)',0,6);
ma144:stkindi('','ma.ma1(144)',0,6);

b13:=(c-ma13)<c*0.015;
b21:=(c-ma21)<c*0.015;
b55:=(c-ma55)<c*0.015;
b144:=(c-ma144)<c*0.015;
s13:=(ma13-c)<c*0.015;
s21:=(ma21-c)<c*0.015;
s55:=(ma55-c)<c*0.015;
s144:=(ma144-c)<c*0.015;

bt:=b21 or b13 or b55 or b144;
ct:=s13 or s21 or s55 or s144;

if bt then buy(holding=0,1,market);

if ct then  buyshort(holding=0,1,market);

我想实现5分钟图上价格在上方接近日图13日均线，21日均线，55日均线，144日均线的1.5%，开仓买入

反之开空，这样写对吗