<div class="price">
 <span v-html="goods.sale_price|format"></span>
 <span class="price-before">￥{{＂这里是价格数据＂}}</span>
</div>

filters:{  //数据过滤器
 format:function(value){
  var html,_val;
  value =Number(value).toFixed(2);
  if(value==0){
   value=0;
   return html = "￥<span>0</span>";
  }else if(value.split('.')[1].substring(1)==0){
   value = Number(value).toFixed(1);
  }
  _val = value.split('.');
  return html = '￥<span>'+_val[0]+'</span><em>.'+_val[1]+'</em>';
 }
}