private void btn_Login_Click(object sender, EventArgs e)
{
Frm_Main fm = (Frm_Main)this.Owner; //得到主窗体对象
fm.user = txt_User.Text; //设置主窗体字段
this.Close(); //关闭当前窗体
}
private void btn_Login_Click(object sender, EventArgs e)
{
Frm_Main fm = (Frm_Main)this.Owner; //得到主視窗物件
fm.user = txt_User.Text; //設定主視窗欄位
this.Close(); //關閉目前視窗
}