/// <summary>
/// 窗体加载时产生随机数
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void Registered_Load(object sender, EventArgs e)
{
//调用生成卡号
string account = CreateAccountNum();
RegistName.Text = account;
//RegistName.Text = "621288100105810458";
//1、验证数据库是否存在当前生成的卡号
UserInfo userInfo = new UserInfo();
userInfo.Card_Number = this.RegistName.Text.ToString();
//2、调用BLL
BankBLL bankbll = new BankBLL();
bool result = bankbll.RegistNumber(userInfo.Card_Number);
//3、如果result返回true的结果，则重新调用生成卡号
while (result != false)
{
//2、重新验证卡号是否存在
MessageBox.Show("已经存在卡号");
account = CreateAccountNum();
result = bankbll.RegistNumber(userInfo.Card_Number);
}
}