代码均是写在partial class Form1 : Form{}代码块之间
View Code [DllImport("user32.dll ")]public static extern bool ReleaseCapture();[DllImport("user32.dll ")]public static extern bool SendMessage(IntPtr hwnd, int wMsg, int wParam, int lParam);public const int WM_SYSCOMMAND = 0x0112;public const int SC_MOVE = 0xF010;public const int HTCAPTION = 0x0002;private void Form1_MouseDown(object sender, MouseEventArgs e){ ReleaseCapture(); SendMessage(this.Handle, WM_SYSCOMMAND, SC_MOVE + HTCAPTION, 0);}