private void Form1_Load(object sender, System.EventArgs e)
{
QQloginCont.UserInf.DelFile(Application.StartupPath + "\\SerInf\\OnlineInf.dat");
DataTable dt = UserInf.GetUserInf();
if (dt != null)
{
this.comboBox1.DataSource = dt;
this.comboBox1.DisplayMember = "user";
this.comboBox1.ValueMember = "pwd";
}
this.textBox2.Text = "";
}