如果不这么左第一次转动之后,再次转动会5*360+deg(上次)转到5*360+deg(本次)

                     

                 */

           });

           var award = getAward();

           alert(award);

     })

     function getAward()

     {

          

           var deg = $arrow.data("deg")

           /*

                 有指针的哪个图片初始方向相对于圆盘往右偏了2度...

           */

           if ((deg >= 332 && deg <= 360) || (deg > 0 && deg < 32))

           {

                 return "三网通流量 10M";

           }

           else if ((deg >= 32 && deg < 92))

           {

                 return "话费20元";

           }

           else if (deg >= 92 && deg < 152)

           {              

                 return "ipad mini4";

           }

           else if (deg >= 152 && deg < 212)

           {

                 return "话费5元";

           }

           else if (deg >= 210 && deg < 272)

           {

                 return "三网通流量 30M";

           }

           else if (deg >= 272 && deg < 332)

           {

                 return "iPhone7";

           }

     }

});

$.random = function(min,max,filter)

{

    

     var i,

           n = Math.floor(Math.random()*(max-min+1)+min);

     if(filter != undefined && filter.constructor == Array)

     {

           for(i=filter.length-1;i>-1;i--)

           {

                 if(n == filter[i])

                 {

                      n = Math.floor(Math.random()*(max-min+1)+min)

                      i = filter.length;

                 }

           }

     }

     return n;

}

//top、left根据父元素的宽和高计算

$.fn.centerPos = function()

{

     var parent;

     this.each(function(index)

     {

           parent = this.parentNode;

           if(parent == document.body)

           {

                 parent = window;

           }

           var position = $(this).css("position");

           if(position == "fixed" || position=="absolute")

           {