private void linkLabel2_LinkClicked(object sender, LinkLabelLinkClickedEventArgs e)
{
Registered reg = new Registered();
this.Hide();
reg.Show();
}
private void 注册新用户RToolStripMenuItem_Click(object sender, EventArgs e)
{
Registered reg = new Registered();
reg.MdiParent = this;
reg.WindowState = FormWindowState.Maximized;
reg.Show();
}