using System;
using System.Collections.Generic;
using
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;

namespace WindowsFormsApplication1
{
    public partial class Form1 : Form
    {
        static int x = 200;
        static int y = 200;
        static int count = 0;
        private void button1_click(object sender, EventArgs e)
        {
            Form1 form2 = new Form1();
            form2.FormBorderStyle = FormBorderStyle.Fixed3D;
            form2.Cursor = Cursor.hand;
            form2.SetDesktopBounds(x, y);
            form2.Visible = true;
            x += 30;
            y += 30;
            this.Activate();
            this.button1.enabled = false;
            Label1.text = "新窗体的坐标（“+X+”，“+Y+”）";
            label2.text = "这是第" + count + "个窗体";
        }

        private void Form1_Load(object sender, EventArgs e)
        {
            count += 1;
        }
        private void form1_formclosed(object sender, FormClosedEventArgs e)
        {
            count -= 1;
        }
        private void button2_click(object sender, EventArgs e)
        {
            this.Hide();
        }
    }
}
运行的时候出错，我做一个窗体的设计界面

是什么意思，哪里出现的错误，提示是什么啊？！

 static int x = 200;
        static int y = 200;
        static int count = 0;
        private void button1_click(object sender, EventArgs e)
        {
            Form1 form2 = new Form1();
            form2.FormBorderStyle = FormBorderStyle.Fixed3D;
            form2.Cursor = Cursors.Hand;
            form2.SetDesktopBounds(x, y, 200, 200);
            form2.Visible = true;
            x += 30;
            y += 30;
            this.Activate();
            this.button1.Enabled = false;
            label1.Text = "新窗体的坐标（" + x + "," + y + "）";
            label2.Text = "这是第" + count + "个窗体";
        }

        private void Form2_Load(object sender, EventArgs e)
        {
            count += 1;
        }
        private void Form2_formclosed(object sender, FormClosedEventArgs e)
        {
            count -= 1;
        }
        private void button2_click(object sender, EventArgs e)
        {
            this.Hide();
        }