帮小弟我看看ajax提交哪有有关问题

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

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

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