<view class='contents'>
      <view wx:for="{{stars}}" wx:key="" style='background:url("{{item.flag==1?item.bgImg:item.bgfImg}}") no-repeat top; background-size:100%;' data-index="{{index}}" bindtap='scores'> </view>
   </view>
</view>
 
wxss部分:
.stars{
  width:100%;
  display: flex;
  height: 40rpx;
  box-sizing: border-box;
  position: relative;
}
.contents{
  width:100%;
  display: flex;
  box-sizing: border-box;
  position: relative;
}
.contents:last-of-type{
  height: 40rpx;
}
.contents:last-of-type view{
  width: 42rpx;
  height: 42rpx;
  margin-right: 15rpx;
  background-size: 100% 100%;
}
JS部分:
// 点亮星星的基础数据
    stars: [
      {
        flag: 1,
bgImg: "http://wximg.youtasc.com/star.png",
        bgfImg: "http://wximg.youtasc.com/f_star.png"
      },
      {
        flag: 1,
        bgImg: "http://wximg.youtasc.com/star.png",
        bgfImg: "http://wximg.youtasc.com/f_star.png"
      },
      {
        flag: 1,
        bgImg: "http://wximg.youtasc.com/star.png",
        bgfImg: "http://wximg.youtasc.com/f_star.png"
      },
      {
        flag: 1,
        bgImg: "http://wximg.youtasc.com/star.png",
        bgfImg: "http://wximg.youtasc.com/f_star.png"
      },
      {
        flag: 1,
        bgImg: "http://wximg.youtasc.com/star.png",
        bgfImg: "http://wximg.youtasc.com/f_star.png"
      }
    ],
// 点亮星星的事件部分
  scores: function (e) {
    var that = this;
    for (var i = 0; i < that.data.stars.length; i++) {
      var allItem = 'stars[' + i + '].flag';
      that.setData({
        [allItem]: 1
      })
    }
    var index = e.currentTarget.dataset.index;
    for (var i = 0; i <= index; i++) {
      var item = 'stars[' + i + '].flag';
      that.setData({
        [item]: 2
      })
    }
  }
 
方案二:(缺陷:目前我还没想到如何实现动态的效果)
wxml部分:
<!-- 点亮星星 -->
    <view class='shop-star'>
      <view class='star-after'>★★★★★</view>
      <view class='star-before' >★★★★★</view>
    </view>
wxss部分:
.shop-star{
  font-size: 50rpx;
  display: flex;
  position: absolute;
}
.star-after{
  font-size: 50rpx;
  color: #e2e2e2;
}
.star-before{
  position: absolute;
  color: #f19e38;
  width: 90%;
  overflow: hidden;
}
 
方案三:
wxml部分:
<block wx:for="{{sumelist}}" wx:key="">
    <image class='comment-icon' src='{{item.url}}' />
 </block>
 <!-- 评论星级、空心 -->
 <block wx:for="{{sumeList}}" wx:key="">
    <image class='comment-icon' src='{{item.Url}}' />
 </block>
wxss部分:
.comment-icon{
  width: 30rpx;
  height: 30rpx;
  display: inline-block;
}
js部分:
sumelist:[
      {
      id:0,
      url:'img/star.png',
    },
      {
        id:1,
        url: 'img/star.png',
      },
      {
        id: 2,
        url: 'img/star.png',
      },
       {
        id: 3,
        url: 'img/star.png',
      },
       {
        id:4,
        url: 'img/star.png',
      },
    ],
   sumeList:[
     {
      id:0,
       Url:'img/starg.png',
    },
     {
       id:1,
       Url: 'img/starg.png',
     },
     {
       id: 2,
       Url: 'img/starg.png',
     },
     {
       id: 3,
       Url: 'img/starg.png',
     },
     {
       id:4,
       Url: 'img/starg.png',
     },
    ],