ajax返回值一直是null？？？

Question

 <script>
                       $(function(){
                           $(".getMore").click(function(){
                               var cid = $(this).attr("cid");
//                               var doPost = "GetSunLists";
                               $.ajax({
                                   type:"post",
                                   url:"http://localhost/kq/index.php/Home/Curl/curlEdit",
                                   data:{"cid":cid},
                                   async: false,
                                   dataType:"json",
                                   success:function(data){
                                       alert(data);
                                   }
                               });
                           });
                       })
                   </script>

Answer 1

各位大神看看代码是否有错