vue中不提倡直接操作dom元素，所以这里使用类名实行互斥效果。
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<template lang="pug">
ul
li(v-for="(item,index) in classArr", @click="result(index)", :class="resultNum === index?'active':''") this is {{item}}
</template><style lang="scss">
li {
list-style: none;
width: 100px;
margin-top: 10px;
border: 1px solid red;
&:hover {
cursor: pointer;
}
}
.active{
}
</style><script> export default{
data(){
return {
classArr: ["one", "two", "three"],
num:"",
}
},
methods: {
result(index){
this.num = index;
}
},
computed:{
resultNum(){
return this.num;
}
}
}
</script> |