variable:n=drawnull,m=drawnull;
ma34:=ma(c,30);
if all(c>ma34,3) then begin
n:=1;
m:=0;
end
if all(c<ma34,3) then begin
m:=1;
n:=0;
end
drawtext(n=1 and ref(n,1)<>1 ,close,'多头');
drawtext(m=1 and ref(m,1)<>1,close,'空头');
all(c>ma34,3) 改成ref( all(c>ma34,3) ,1)
下面那个一样