© { JSL }
13
·a class
local variable lives on the stack
wis not
definitely assigned
wcan be
initialised with null or a c'tor call
p
stack
?
.X
.Y
heap
required
static void Main()
{
Pair p;
}
static void Main()
{
Pair p = null;
}
static void Main()
{
Pair p = new Pair();
}
p
null
p
@
0
0