C#实现随鼠标移动窗体实例

private void MainForm_Load(object sender, EventArgs e) {   //绑定事件   MouseMove += Form_MouseMove;   MouseDown += Form_MouseDown; } private Point _mousePoint; private void Form_MouseMove(object sender, MouseEventArgs e) {   if (e.Button == MouseButtons.Left)   {     Top = MousePosition.Y - _mousePoint.Y;     Left = MousePosition.X - _mousePoint.X;   } } private void Form_MouseDown(object sender, MouseEventArgs e) {   if (e.Button == MouseButtons.Left)   {     _mousePoint.X = e.X;     _mousePoint.Y = e.Y;   } } 

Top -= SystemInformation.CaptionHeight;

Top -= SystemInformation.FormBorderSize.HeightLeft -= SystemInformation.FormBorderSize.Width