改进攻主图的选股公式

编写要求：

股票网解答：

网友求助：

请老师帮我改进攻主图，当发出进攻信号时的选股公式，谢谢！

MA5:MA(CLOSE,5),COLORFFFFFF,LINETHICK2;
MA13:MA(CLOSE,13),COLOR00FF00;
MA21:MA(CLOSE,21),COLOR00FFFF,LINETHICK2;
MA34:MA(CLOSE,34),COLORFF00FF;
{MA55:MA(CLOSE,55),COLOR0000FF;}
{MA120:=MA(CLOSE,120),COLORFFFF00;}
天使:=EMA(C,2),COLOR000000;
魔鬼:=EMA(SLOPE(C,21)*20+C,42),COLOR000000;
买:=CROSS(天使,魔鬼);
卖:=CROSS(魔鬼,天使);
DRAWICON(买,L*0.97,1);
DRAWTEXT(买,L*0.92,'进攻'),COLORYELLOW;
DRAWICON(卖,H*1.03,2);
DRAWTEXT(卖,H*1.08,'撤退'),COLORWHITE;
STICKLINE(天使>=魔鬼,LOW,HIGH,0.01,0),COLOR0000DD;
STICKLINE(天使>=魔鬼,CLOSE,OPEN,2,1),COLORRED;
{STICKLINE(天使>=魔鬼,CLOSE,OPEN,3,0),COLOR0000CC;
STICKLINE(天使>=魔鬼,CLOSE,OPEN,2,0),COLOR0000DD;
STICKLINE(天使>=魔鬼,CLOSE,OPEN,1,0),COLOR0000FF;}
{STICKLINE(天使<魔鬼,CLOSE,OPEN,1,0),COLOREEEE00;
STICKLINE(天使<魔鬼,CLOSE,OPEN,2,0),COLORDDDD00;
STICKLINE(天使<魔鬼,CLOSE,OPEN,3,0),COLORCCCC00;}
STICKLINE(天使<魔鬼,LOW,HIGH,0.01,0),COLORFFDD00;
STICKLINE(天使<魔鬼,CLOSE,OPEN,2,0),COLORFFFF00;
STICKLINE(CROSS(天使,魔鬼),OPEN,CLOSE,2.5,0),COLORYELLOW;
STICKLINE(CROSS(魔鬼,天使),OPEN,CLOSE,2.5,0),COLORWHITE;

解答如下：

MA5:=MA(CLOSE,5),;
MA13:=MA(CLOSE,13),;
MA21:=MA(CLOSE,21),;
MA34:=MA(CLOSE,34),COLORFF00FF;
天使:=EMA(C,2),COLOR000000;
魔鬼:=EMA(SLOPE(C,21)*20+C,42),;
买:=CROSS(天使,魔鬼);
进攻:买;

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