private void IsExist(HttpContext context)
{
context.Response.ContentType = "text/plain";
string uLoginName = context.Request.Params["uLoginName"];
bool flag = bll_u.Exists(uLoginName);
if (flag)
{
context.Response.Write("ok");
}
else
{
context.Response.Write("no");
}
context.Response.End();
}
