XG35:cross(MA3,MA5) AND MA10 REF(MA10,1) AND MA20 REF(MA20,1) AND
MA30 REF(MA30,1);{ma3金叉ma5, ma10向上,ma20向上,ma30向上}
XG510:cross(MA5,MA10) AND MA20 REF(MA20,1) AND MA30 REF(MA30,1);
{ma5金叉ma10,,ma20向上,ma30向上}
XG1020:cross(MA10,MA20) AND MA30 REF(MA30,1);
{ma10金叉ma20,ma30向上;}