© { JSL }
34
![Text Box: params object[ ]](slide1023_image123.png)
·params
with object as the element type
wcreates a
truly variadic function
wthanks to
boxing
static void BlackHole(params object[] row)
{
if (row != null)
Console.WriteLine(row.Length);
else
Console.WriteLine("null");
}
static void Main()
{
BlackHole(null);
BlackHole();
BlackHole(1M);
BlackHole(new int[]{1,2});
BlackHole(1, 2.0, "three");
}
null
0
1
1
3
