//对话框载入 private void LogIn_Load(object sender, EventArgs e) { if (!RegisterForm.registered()) { hasRegistered = false; } if (hasRegistered) { register.Visible = false; } else if (!hasRegistered && !checkTrialTimes()) { okBtn.Enabled = false; } read_users(); id.Items.AddRange(idList.ToArray()); if (id.Items.Count != 0) { id.Text = id.Items[0].ToString(); } }