Vue实现点击后文字变色切换方法

<span class="response" v-show="!showCommentInput" @click="showCommentInput = !showCommentInput">回复</span>
<span class="response" v-show="showCommentInput" @click="showCommentInput = !showCommentInput">回复</span>

data(){
 return {
  showCommentInput = false,
 }
}

.response {
 font-size:14px;
 color: #3e3e3e;
 &:hover{
 font-weight: bold;
 }
 &+.response {
 font-weight: bold;
 }