/// <summary>
/// 查询分页总数
/// </summary>
/// <returns></returns>
public int Count(string sup, string sub)
{
StringBuilder sb = new StringBuilder();
sb.Append("select count(id) from article where status=1 ");
if (!String.IsNullOrEmpty(sup))
{
sb.Append(" and supnum=@sup ");
}
if (!String.IsNullOrEmpty(sub))
{
sb.Append(" and subnum=@sub ");
}
var param = new { sup = sup, sub = sub };
return(dal.QueryScalar <int>(sb.ToString(), param));
}