public MainFrom_Client()
{
InitializeComponent();
SetMainTreadState();
}
//先設(shè)定主窗體（也就是MainFrom_Client）的透明度和任務(wù)欄狀態(tài)
private void SetMainTreadState()
{
//這個其實是障眼法！把主窗體（也就是MainFrom_Client）的弄成隱形的，
//只需要把Opacity改成就出來了，哈哈哈哈哈哈哈哈
this.Opacity = ;
//然后在把菜單欄運行的顯示也隱形掉
this.ShowInTaskbar = false;
}
private void ResetMainThreadState()
{
this.Opacity = ;
this.ShowInTaskbar = true;
//把當前控件帶到前面來就好了
this.BringToFront();
}

static void Main()
{
Application.EnableVisualStyles();
Application.SetCompatibleTextRenderingDefault(false);
Login_interface login_ = new Login_interface();
login_.Show();
Application.Run();
} 

#region 由登陸界面進入到用戶界面
private void button_Click(object sender, EventArgs e)
{
if (textBox_UserName.Text == "" && textBox_PassWord.Text == "")
{
this.Close();
User_Panel fm = new User_Panel();
fm.Show();
}
else
{
MessageBox.Show("用戶名與密碼錯誤，請重新輸入");
}
}
#endregion