private void tsmiYl3_2_Click(object sender, EventArgs e)
{
FrmLoginFile_chs frmlogin = new FrmLoginFile_chs(this);
frmlogin.MdiParent = this;
frmlogin.Show();
}
private void 登录文件ToolStripMenuItem_Click(object sender, EventArgs e)
{
FrmLoginFile_chs frmlogFile = new FrmLoginFile_chs();
frmlogFile.MdiParent = this;
frmlogFile.Show();
}