實現效果:

知識運用：

　　註冊表項中的NoClose鍵進行設置

實現代碼：

        private void button1_Click(object sender, EventArgs e)
        {
            RegistryKey rk = Registry.CurrentUser.CreateSubKey(@"Software\Microsoft\Windows\CurrentVersion\Policies\Explorer");
            rk.SetValue("NoClose",1);
            MessageBox.Show("屏蔽關機功能成功");
        }
        private void button2_Click(object sender, EventArgs e)
        {
            RegistryKey rk = Registry.CurrentUser.CreateSubKey(@"Software\Microsoft\Windows\CurrentVersion\Policies\Explorer");
            rk.SetValue("NoClose", 0);
            MessageBox.Show("開啟關機功能成功，重新啟動生效");
        }

屏蔽和開啟”關機“功能