微信小程序 五星评分(包括半颗星评分)实例代码

<!--index.wxml--><block wx:for="{{stars}}"> <image class="star-image" style="left: {{item*150}}rpx" src="{{key > item ?(key-item == 0.5?halfSrc:selectedSrc) : normalSrc}}">  <view class="item" style="left:0rpx" data-key="{{item+0.5}}" bindtap="selectLeft"></view>  <view class="item" style="left:75rpx" data-key="{{item+1}}" bindtap="selectRight"></view> </image></block>

.star-image { position: absolute; top: 50rpx; width: 150rpx; height: 150rpx; src: "../../images/normal.png";}.item { position: absolute; top: 50rpx; width: 75rpx; height: 150rpx;}

//index.js//CSDN微信小程序开发专栏:http://blog.csdn.net/column/details/13721.html//获取应用实例var app = getApp()Page({ data: {  stars: [0, 1, 2, 3, 4],  normalSrc: '../../images/normal.png',  selectedSrc: '../../images/selected.png',  halfSrc: '../../images/half.png',  key: 0,//评分 }, onLoad: function () { }, //点击右边,半颗星 selectLeft: function (e) {  var key = e.currentTarget.dataset.key  if (this.data.key == 0.5 && e.currentTarget.dataset.key == 0.5) {   //只有一颗星的时候,再次点击,变为0颗   key = 0;  }  console.log("得" + key + "分")  this.setData({   key: key  }) }, //点击左边,整颗星 selectRight: function (e) {  var key = e.currentTarget.dataset.key  console.log("得" + key + "分")  this.setData({   key: key  }) }})