a11:=dma(c,v/sum(v,250));
a1:=dma(c,v/sum(v,7));
a2:=dma(c,v/sum(v,13));
a3:=dma(c,v/sum(v,34));
a4:=dma(c,v/sum(v,55));
年线:(c-a11)/a1*100,colorred;
M7:(c-a1)/a1*100;
M13:(c-a2)/a2*100;
M34:=(c-a3)/a2*100;
M55:(c-a4)/a2*100;
xg1:=a2<=-28 and a3<=-19;
xg2:=cross(M13,M34);
买:cross(M55,M34) and M34>M13 and M13>M7;
卖:=cross(M7,M13) and M55>M34 and M34>M7;
买1:cross(m13,m7) and 年线>M13 AND M7>M55;
买2:cross(m55,m7) and 年线>M13 AND M13>M55;
xg:cross(年线,m55) and m55>m13 and m13>m7;
买3:CROSS(M55,M13) AND 年线>M55 AND M13>M7;
