微信小程序框架wepy之动态控制类名

<style lang="less" scoped>  .liBkgCor {   background-color: red;  }</style>

<view class="t_tab"> <li @tap.stop="changeLi({{1}})" class="{{ liColor == 1 ? 'liBkgCor':'' }}">推荐</li>  <li @tap.stop="changeLi({{2}})" class="{{ liColor == 2 ? 'liBkgCor':'' }}">洗手台</li>  <li @tap.stop="changeLi({{3}})" class="{{ liColor == 3 ? 'liBkgCor':'' }}">淋浴</li> <li @tap.stop="changeLi({{4}})" class="{{ liColor == 4 ? 'liBkgCor':'' }}">马桶</li></view>

 data = {   liColor:1 //默认让第一个tab高亮  }  methods = {   changeLi(e){    this.liColor = e.target.dataset.wepyParamsA     this.$apply() //通知wepy框架data数据更改需要重绘页面   }  }