private void 除添加用户ToolStripMenuItem_Click(object sender, EventArgs e)
{
frmAddUer frmadduser = new frmAddUer();
frmadduser.MdiParent = this;
frmadduser.StartPosition = FormStartPosition.CenterScreen;
frmadduser.Show();
}
private void button1_Click(object sender, EventArgs e)
{
frmAddUer frmaddUser = new frmAddUer();
frmaddUser.Show();
}