十战七胜里出现买进做选股预警

编写要求：

请老师把十战七胜里出现买进做选股预警MAA5:MA(C,5),COLORFF00FF,LINETHICK2;MAA10:=MA(C,10);EMA10:MA(C,10);EMA20:MA(C,20);MAA30:MA(C,30),COLORRED,LINETHICK2;KS:IF(MAA10>MAA30,MAA10,MAA30),COLORBLUE;A3:=(C-LLV(L,9))/(HHV(H,9)-LLV(L,9))*100;A4:=SMA(A3,3,1);A5:=SMA(A4,3,1);A6:=3*A4-2*A5;A7:=C-REF(C,1);A8:=100*EMA(EMA(A7,6),6)/EMA(EMA(ABS(A7),6),6);买:=LLV(A8,2)=LLV(A8,7) AND COUNT(A8<0,2) AND CROSS(A8,MA(A8,2));DRAWTEXT(FILTER(买=1,5),LOW-0.05,'↖买进'),COLORYELLOW;STICKLINE(买,OPEN,CLOSE,2,0),COLORYELLOW;MA60:MA(C,60),COLOR00FFFF,LINETHICK2;MA120:MA(C,120);VAR1:=ZIG(3,13);STICKLINE((REF(VAR1,2) < REF(VAR1,1)) AND (VAR1 < REF(VAR1,1)),CLOSE,OPEN,5,0),COLOR66FF00;STICKLINE((REF(VAR1,2) > REF(VAR1,1)) AND (VAR1 > REF(VAR1,1)),CLOSE,OPEN,5,0),COLORYELLOW; ;

解答：

 a7:=c-ref(c,1);