private delegate void WriteLabelDelegate(object entry);        private void WriteLoginResult(object text)
        {
            this.labellogin.Text = text.ToString();
        }        private void SetLoginResult(string text)
        {
            this.labellogin.Invoke(new WriteLabelDelegate(WriteLoginResult), text);
            如果上面这句我换成
            WriteLoginResult(text);
            有啥区别么?
        }