小编Bah*_*ahy的帖子

我有这个代码：

public float? InputCutOffFrequency { get; set; }//fc

public float? InputF1 { get; set; }

public float? InputF2 { get; set; }

public float InputTransitionBand { get; set; }

public float InputFS { get; set; }

public float calcFc1(float f, float fs, float transition)
{
    float _f = f + (transition / 2);
    _f /= fs;
    return _f;
}

float fc1;
fc1 = calcFc1(InputCutOffFrequency, InputFS, InputTransitionBand);

运行此代码时，我收到此错误：

cannot convert from 'float?' to 'float

我该如何修复这个错误？