/// <summary>
/// 是否存在该记录
/// </summary>
public bool Exists(int id)
{
return(dal.Exists(id));
}
/// <summary>
/// 查询用户名是否存在
/// </summary>
public bool Exists(string user_name)
{
return(dal.Exists(user_name));
}
/// <summary>
/// 是否存在该记录
/// </summary>
public bool Exists(int id)
{
return(dal.Exists(id));
}
/// <summary>
/// 查询用户名是否存在
/// </summary>
public bool Exists(string user_name)
{
return(dal.Exists(user_name));
}