//第一种:实例化一个新窗体
            NodeSet nsForm = new NodeSet();
            nsForm.StartPosition = FormStartPosition.Manual;
            nsForm.Location = new Point(200, 270);
            nsForm.Show();

    

         //第二种:为按钮添加s一个委托事件

            NodeSet.Click += delegate(object sender, EventArgs e)
            {
                //实例化一个窗体对象
                NodeSet nsform = new NodeSet();
                //获取或设置窗体的起始位置
                nsform.StartPosition = new FormStartPosition();
                nsform.Location = new Point(200, 270);
                nsform.Show();
            };