小程序实现五星点评效果

<!--星星评价-->
  <view class="comment1-description" style="display:flex;flex-direction:row;">
  <view class="comment1-description1">描述相符</view>
  <view class="star-pos" style="display:flex;flex-direction:row;">
    <view class="stars {{flag0>=1? 'on': ''}}" bindtap="changeColor1"></view>
    <view class="stars {{flag0>=2? 'on': ''}}" bindtap="changeColor2"></view>
    <view class="stars {{flag0>=3? 'on': ''}}" bindtap="changeColor3"></view>
    <view class="stars {{flag0>=4? 'on': ''}}" bindtap="changeColor4"></view>
    <view class="stars {{flag0>=5? 'on': ''}}" bindtap="changeColor5"></view>
</view>
</view>

Page({
 data:{
   flag:0
 },
 changeColor1:function(){
    var that = this;
    that.setData( {
      flag: 1
    });
 },
 changeColor2:function(){
    var that = this;
    that.setData( {
      flag:2
    });
  },
 changeColor3:function(){
    var that = this;
    that.setData( {
      flag: 3
    });
  },
 changeColor4:function(){
    var that = this;
    that.setData( {
      flag:4
    });
  },
 changeColor5:function(){
    var that = this;
    that.setData( {
      flag: 5
    });
  },

/*星星的样式*/
.stars{
  background-image: url("http://m.dev.vd.cn/static/xcx/v1/goo/star(灰)@1.5x.png");
  width: 43rpx;
  height: 43rpx;
  background-size: 43rpx 43rpx;
  margin-left: 40rpx;
}
.on{
  background-image: url("http://m.dev.vd.cn/static/xcx/v1/goo/star@1.5x.png");
  width: 43rpx;
  height: 43rpx;
  background-size: 43rpx 43rpx;
  /*margin-left: 10px;*/
}