帮小弟我看看ajax提交哪有有关问题

  $.ajax({
                type: "post",
                url: "nodedo.php",
                data: $("#form1").serialize(),
                success: function(data) {
                    layer.msg('添加成功', 2, 1);
                },
                error: function(data) {
                           layer.msg('添加失败', 2, 2);
                    alert(data);
                }
            })

 $conn  = mysql_connect("localhost","root","");
$my_db = mysql_select_db("lyq",$conn);
      $account = $_POST['account'];
   $sql = "insert into salesman(account) values ('$account')";
      $result = mysql_query($sql, $conn);
     $userInfo = mysql_fetch_assoc($result);
       echo  json_encode($userInfo);

 $.post(
                'nodedo.php',
                {
                    account:$("#account").val(),
                    name:$("#name").val()
                    //   name:$("#name").val()
                },
                function (data) { //回调函数
                    var myjson='';
                    eval('myjson=' + data + ';');
                    alert(data);

                }
        );