Float与0值的比较

int main()
{
    float fa = 1.111;
    if( fa > -0.000001 && fa < 0.000001)    //小数点后五个0
    {
        std::cout << "equals 0" << endl;
    }
    else
    {
        std::cout << "is not 0" << endl;
    }
    return 0;
}