/// <summary>
/// 判断用用户名是否存在
/// </summary>
/// <param name="loginName">登录名</param>
/// <returns></returns>
public static Operator GetOperatorByLoginName(string loginName)
{
Operator op = null;
foreach (Operator item in operators)
{
if (item.LoginName == loginName)
{
op = item;
}
}
if (op != null)
{
return(op);
}
else
{
op = null;
op = Provider.GetOperatorByLoginName(loginName);
if (op != null)
{
operators.Add(op);
return(op);
}
else
{
return(null);
}
}
}