需求:
代码实现:
<!-- css --><style>.red{color: red;}</style><!-- html --><divid="app"><ul><liv-for="item,index in movies":class="{red: changeRed == index}"v-on:click="change(index)">{{item}}</li></ul></div><!-- JavaScript --><scriptsrc="../JS/vue.js"></script><script>const app=newVue({ el:'#app', data:{ movies:['肖申克的救赎','泰坦尼克号','当幸福来敲门','流浪地球'], changeRed:-1}, methods:{ change:function(index){this.changeRed=index;}}})</script>
代码解释: