把大智慧的凤凰线指标改成通达信的指标和选股公式

编写要求：

{n,1,1,30,1}xopen:=(ref(o,N)+ref(c,N))/2;xclose:=close;xhigh:=max(high,xopen);xlow:=min(low,xopen);volality:=ma(xhigh-xlow,8);凰线:ma(xclose,5)+volality/2;凤线:ma(xclose,5)-volality/2;bu:=cross(xclose,凰线);sel:=cross(凤线,xclose);var1:=barslast(bu);var2:=barslast(sel);drawicon(ref(var1,1)>var2 and var1=0,xlow,7),align1,valign0;drawicon(ref(var2,1)>var1 and var2=0,xhigh,8),align1,valign2;STICKLINE(xclose>xopen and var1xopen and var1xopen and var1var2,xclose ,xopen ,8,0 ),colorgreen;STICKLINE(xclose<=xopen and var1>var2,xopen ,xhigh ,0.5,0 ),colorgreen; STICKLINE(xclose<=xopen and var1>var2,xclose,xlow ,0.5,0 ),colorgreen;STICKLINE(xclose>xopen and var1>var2,xclose ,xopen ,8,0 ),colorblue;STICKLINE(xclose>xopen and var1>var2,xclose,xhigh ,0.5,0 ),colorblue; STICKLINE(xclose>xopen and var1>var2,xopen,xlow ,0.5,0 ),colorblue;

解答：

 N:=1;