在v-for循环里
<ul class="project_content">
<li v-for="(item, index) in items" :key="index" v-if="index%2==0">
<div class="project_wrap clearfix">
<router-link :to="{path:‘/detail‘,query: { id: item.goods_id }}" class=‘project_inner‘>
<img :src="item.original_img" class=‘original_img‘>
</router-link>
<div class="article_name">{{item.article_name}}</div>
<div class="article_message">
<div class="user_info">
<div class="user_img"><img :src="item.user_img" ></div>
<span class="user_name">{{item.user_name}}</span>
</div>
<div class="article_likes" @click="dolikes(index)"><span v-bind:class="[item.likesbefore? ‘likesbefore‘:‘likesafter‘]"></span><span class="likes" v-bind:class="[item.likesbefore ? ‘gray‘:‘pink‘]">{{item.likes}}</span></div>
</div>
</div>
</li>
</ul>
函数带上index
methods: {
//时间操作函数执行
dolikes(index){
console.log(this.items[index])
this.items[index].likes = this.items[index].likesbefore ?parseInt(this.items[index].likes) +1:parseInt(this.items[index].likes) -1
this.items[index].likesbefore=!this.items[index].likesbefore;
console.log(this.items[index].likesbefore)
}
