股价站上60日均线选股器

aaa:=ma(c,5) ma(c,10) and ma(c,10) ma(c,20) and ma(c,20) ma(c,30) and ma(c,30) ma(c,60) ;
bbb:=ma(c,30) ref(ma(c,30),1);
ccc:=c ma(c,60);
xg:aaa and bbb and ccc;