/// <summary>
 /// 根据账号密码获取用户实体
 /// </summary>
 /// <param name="uaccount">账号</param>
 /// <param name="upassword">密码</param>
 /// <returns></returns>
 public CzarUsers FindUserByuAccount(string uaccount, string upassword)
 {
     using (var connection = new SqlConnection(DbConn))
     {
         string sql    = @"SELECT * from CzarUsers where uAccount=@uaccount and uPassword=upassword and uStatus=1";
         var    result = connection.QueryFirstOrDefault <CzarUsers>(sql, new { uaccount, upassword = SecretHelper.ToMD5(upassword) });
         return(result);
     }
 }