YYF? 兄弟玩dota2嗎?
循環(huán)和按鈕可自定義變量控制
代碼如下
HTML

html如下
        <div id="app">
        <div v-for="(item,key) in data" :key="key" class="home">
            <span>{{item.title}}</span>
            <button  class="btn anni1" :class="{'color' : oneThree === key && hIndex === 0 }" @click="one(key)">點(diǎn)擊1</button>
            <button class="btn anni1" :class="{'color' : twoThree === key && hIndex === 1 }" @click="two(key)">點(diǎn)擊2</button>
            <button class="btn anni1" :class="{'color' : twoThree === key && hIndex === 2 }"  @click="three(key)">點(diǎn)擊3</button>
        </div>    
    </div>

JS

    <script type="text/javascript">
        new Vue({
            el:"#app",
            data :{
                data:[
                    {title:"111"},
                    {title:"2222"},
                    {title:"333"}
                ],
                oneIndex:null,
                twoIndex:null,
                threeIndex:null,
                hIndex:null
            },
            methods: {
                one(key) {
                  this.oneIndex = key;
                  this.isKey = 0;
                },
                two(key) {
                  this.twoIndex = key;
                  this.isKey = 1;
                },
                three(key) {
                  this.threeIndex = key;
                  this.isKey = 2;
                }
            }
        })
    </script>

還有 可以 直接給data里加上個屬性isClicked：false.點(diǎn)擊變化當(dāng)前行的isClicked就可以了.
希望有幫助

你這不能叫循環(huán)出來的按鈕了。循環(huán)都沒在按鈕上。希望以后問題的代碼能貼全。

<div v-for="(item, index) in data" class="home" :key="index">
  <span>{{item.title}}</span>
  <button  class="btn anni1" :class="{'red': item.activeIndex === 1}" @click="setActive(item, 1)">點(diǎn)擊1</button>
  <button class="btn anni1" :class="{'red': item.activeIndex === 2}" @click="setActive(item, 2)">點(diǎn)擊2</button>
  <button class="btn anni1" :class="{'red': item.activeIndex === 3}" @click="setActive(item, 3)">點(diǎn)擊3</button>
</div>

setActive (item, num) {
  this.$set(item, 'activeIndex', num) //item里沒有activeIndex，動態(tài)添加屬性要用$set
}

<div id="app">
        <div v-for="(item,key) in data" class="home">
            <span>{{item.title}}</span>
        </div>    
        <button  class="btn anni1" @click="one">點(diǎn)擊1</button>
        <button class="btn anni1" @click="two">點(diǎn)擊2</button>
        <button class="btn anni1" @click="three">點(diǎn)擊3</button>
    </div>