private void 关于系统ToolStripMenuItem_Click_1(object sender, EventArgs e)
{
About abo = new About();
abo.Owner = this;
abo.ShowDialog();
}
private void btnAbout_Click(object sender, EventArgs e)
{
LL.Main.About abo = new About();
abo.ShowDialog();
}
private void 关于系统ToolStripMenuItem_Click(object sender, EventArgs e)
{
LL.Main.About about = new About();
about.Show();
}