主题：周线Ｋdj的K大于D时，日线J二次下穿0 怎样写啊

k:stkindi('','kdj.k',0,7);
d:stkindi('','kdj.d',0,7);
j:stkindi('','kdj.j',0,6);
variable:n=0;
if cross(0,j) then n:=n+1;

if k>d and n>=2 then buy(holding=0,1,market);
if k<d and holding>0 then begin
 sell(1,0,market);
 n:=0;
end