<div style="float:left;height:50px;width:54px; paging:50%;margin: 1em; "                     :class="returnColor(item.XSJBDM)" >
 <div style="height:50px;margin-left:1.8em;margin-top:0.8em;color:#fff;">{{item.XSJBDM}}</div>
</div>


<script>
 returnColor(type){
     switch(type)
            {
            case 'A':
            return 'red'
            break;
            case 'B':
            return 'blue'
            break;
            default:
            return 'red'
            }
    },
</script>