谢谢，是我想要的

不客气，互帮互助

Vars
	Series<Numeric> Ma30;
	Series<Bool> ConOver;
	Series<Bool> ConUnder;
	Bool ResOver;
	Bool ResUnder;
	
Events
	OnBar(ArrayRef<Integer> indexs){
		Ma30 = AverageFC(Close, 30);
		ConOver = CrossOver(Close[1], Ma30[1]);
		ConUnder = CrossUnder(Close[1], Ma30[1]);
		ResOver = NthCon(ConOver, 2) < 10;
		ResUnder = NthCon(ConUnder, 2) < 10;
		PlotNumeric(\"Ma30\", Ma30);
		If(ResOver) PlotBool(\"ResOver\", !ResOver, High);
		If(ResUnder) PlotBool(\"ConUnder\", ConUnder, Low);
	}

不知道这个是不是你想要的效果？

nthcon函数试试