//ajax传值

                                var str= JSON.stringify(arr1);//数组转string

                                //alert(typeof(str));

                                $.ajax({

                                  url:'test.php'

                                  ,type:'POST'

                                  ,data:{str:str}

                                  ,success:function(rst){alert('接受成功！');}

                                  ,error:function(xhr){alert('php页面有错误！'+xhr.responseText);}

                              });