public static OperatorTest operator +(OperatorTest r,OperatorTest l)
{
OperatorTest result = new OperatorTest();
result.m_i = r.m_i + l.m_i;
result.m_j = r.m_j + l.m_j;
result.m_k = r.m_k + l.m_k;
return result;
}
static void Main(string[] args)
{
//test 1
{
int i = 5;
object o = i;//装箱
i = 10;
int j = (int)o;//拆箱
j = 15;
int k = (int)o;
System.Console.WriteLine("{0},{1},{2}", i, j, k);
}
//test 2
{
Box i = new Box(5);
object o = i;
i.Val = 10;
Box j = (Box)o;
j.Val = 15;
Box k = (Box)o;
System.Console.WriteLine("{0},{1},{2}", i.Val, j.Val, k.Val);
}
//test 3 use struct
{
SBox i = new SBox();
i.Val = 5;
object o = i;
i.Val = 10;
SBox j = (SBox)o;
j.Val = 15;
SBox k = (SBox)o;
System.Console.WriteLine("{0},{1},{2}", i.Val, j.Val, k.Val);
}
//test 4 operator + test
{
OperatorTest i = new OperatorTest(1, 2, 3);
OperatorTest j = new OperatorTest(4, 5, 6);
OperatorTest k = i + j;
System.Console.WriteLine("{0},{1},{2}", k.m_i,k.m_j,k.m_k);
}
Console.ReadLine();
}