private void 学生上机状态查询ToolStripMenuItem_Click(object sender, EventArgs e)
{
frmOnlineQuery frmOnlinequery = new frmOnlineQuery();
frmOnlinequery.MdiParent = this;
frmOnlinequery.StartPosition = FormStartPosition.CenterScreen;
frmOnlinequery.Show();
}
private void 查询ToolStripMenuItem_Click(object sender, EventArgs e)
{
frmOnlineQuery frmOnline = new frmOnlineQuery();
frmOnline.Show();
}