out 数组总是提示有些路竟没有赋值

private void CalculateSteps( double startWavelength, double stopWavelength, double stepWidth, out double[] stepArray )

{

if(startWavelength < stopWavelength)

{

if((stopWavelength - startWavelength) > stepWidth)

{

int i = 0;double step = startWavelength;

do

{

stepArray[i] = step; //就这一句

step += stepWidth;

++i;

}

while((stopWavelength - step) > stepWidth);

stepArray[i] = stopWavelength;

}

else

{

stepArray = new double[0];

throw new Exception("The value between start and stop is less than step width.");

}

}

else if(startWavelength > stopWavelength)

{

if((startWavelength - stopWavelength) > stepWidth)

{

int i = 0;double step = startWavelength;

while((step - stopWavelength) > stepWidth)