一模一樣的策略寫在警示跟選股回測跑出來的結果不同

以下的策略同時寫在警示跟選股的策略，但回測的結果卻不同，是因為什麼原因呢?

input: shortlength(3); setinputname(1,"短期均線期數");

input: midlength(5); setinputname(2,"中期均線期數");

input: Longlength(8); setinputname(3,"長期均線期數");

input: Percent(2);  setinputname(4,"均線糾結區間%");

input: Volpercent(25);  setinputname(5,"放量幅度%");//帶量突破的量是超過最長期的均量多少%

variable: shortaverage(0);

variable: midaverage(0);

variable: Longaverage(0);

condition1=false;

condition2=false;

condition3=false;

//成交量過小過濾

input:Length(5);

input:VolumeLimit(500);

SetInputName(1, "均量天期");

SetInputName(2, "最小均量");

SetTotalBar(3);

Value4 = Average(volume, Length);

if Value4 > VolumeLimit then condition1=true;

//收盤價高於昨天收盤價

if close > close[1] then condition2=true;

//突破358糾結均線

settotalbar(8);

setbarback(maxlist(shortlength,midlength,Longlength));

if volume > average(volume,Longlength) * (1 + volpercent * 0.01) then

begin

shortaverage = average(close,shortlength);

midaverage = average(close,midlength);

Longaverage = average(close,Longlength);

if Close crosses over maxlist(shortaverage,midaverage,Longaverage) then

begin

value1= absvalue(shortaverage -midaverage);

value2= absvalue(midaverage -Longaverage);

value3= absvalue(Longaverage -shortaverage);

if maxlist(value1,value2,value3)*100 < Percent*Close 

and condition1 and condition2

then  ret=1;

end;

end;