把“丁丁四线”选股公式改为主图指标

编写要求：

丁丁1:=EMA(C,3),COLORWHITE; 丁丁2:=EMA(C,5),COLORYELLOW; 丁丁3:=EMA(C,7),COLORBROWN; 丁丁4:=EMA(C,12),COLORLIGREEN; 丁丁5:=EMA(C,20),COLORRED; SS:=CROSS(丁丁1,丁丁2) AND C>O AND C>REF(C,1) AND C/REF(C,1)>=1.018 OR CROSS(丁丁1,丁丁4) AND C>O AND C>REF(C,1) AND C/REF(C,1)>=1.018 OR CROSS(丁丁2,丁丁3) AND C>O AND C>REF(C,1) AND C/REF(C,1)>=1.018 OR CROSS(丁丁1,丁丁3) AND C>O AND C>REF(C,1) AND C/REF(C,1)>=1.018 AND CROSS(丁丁1,丁丁4); DRAWICON(SS,L-0.04,5); DD:=CROSS(丁丁2,丁丁3) AND C>O AND C>REF(C,1) AND C/REF(C,1)>=1.018 OR CROSS(丁丁2,丁丁5) AND C>O AND C>REF(C,1) AND C/REF(C,1)>=1.018 OR CROSS(丁丁3,丁丁4) AND C>O AND C>REF(C,1) AND C/REF(C,1)>=1.018 OR CROSS(丁丁2,丁丁4) AND C>O AND C>REF(C,1) AND C/REF(C,1)>=1.018 AND CROSS(丁丁1,丁丁5); 请老师把选股公式改为主图指标，另加入一条50日均线.

解答：

?{OK.已完成}

丁丁1:=EMA(C,3),COLORWHITE;