帮我看看ajax提交哪有问题

  $.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);                }        );