public void Bar()
{
    Foo foo = new Foo();
    **foo.MyEvent += foo_MyEvent;**
    foo.FireEvent();        
}

void foo_MyEvent(object sender,EventArgs e)
{
    ((Foo)sender).MyEvent -= foo_MyEvent;
}

嘿,我有点不熟悉事件,有人可以告诉我什么=运算符与事件？