四叶玫瑰数

四叶玫瑰数。四叶玫瑰数是指四位数各位上的数字的四次方之和等于本身的数。

<script type="text/javascript">

         function num(a){

                   var qian=parseInt(a/1000);

                   var bai=parseInt(a%1000/100);

                   var shi=parseInt(a%100/10);

                   var ge=a%10;

                   if(Math.pow(qian,4)+Math.pow(bai,4)+Math.pow(shi,4)+Math.pow(ge,4)==a){

                            return a;

                   }

         }

         for(var i=1000;i<10000;i++){

                   if(i==num(i)){

                            console.log(i);

                   }

         }

</script>