//求长度，结果取整
public int Magnitude()
{
return((int)IntMath.Sqrt(x * x + y * y));
}
//求长度，结果取整
public int Magnitude()
{
return(IntMath.Sqrt(Square()));
}
//求长度，结果取整
public int Magnitude()
{
return((int)IntMath.Sqrt(x * x + y * y));
}
//求长度，结果取整
public int Magnitude()
{
return(IntMath.Sqrt(Square()));
}