public void refmodifier()
{
int x = 8;
ParameterModifier.Foo(ref x); // Ask Foo to deal directly with x
Assert.AreEqual(9, x); // x is now 9
}
public void ValueParameter()
{
StringBuilder sb = new StringBuilder();
ParameterModifier.Foo(sb); // Make a copy of x
Assert.AreEqual("test", sb.ToString());
}