vue实现文章内容过长点击阅读全文功能的实例

<div class="bodyfont clearfloat" id="bodyfont" ref="bodyfont" :class="{bodyheight:contentstatus}">
  <div v-html="content"></div>
</div>
<div class="contenttoggle" v-if="contentstatus" @click="contentstatus=!contentstatus">阅读全文</div>

.bodyfont{
 .font-dpr(16px);
 color: #333;
 text-align: left;
 line-height:58px;
 word-break:break-all;
 word-wrap:break-word;
 padding-bottom: 30px;
 height:auto;
 overflow: hidden;
 max-height: 100%;
 p{margin:16px 0 0 0;}
 }
 .bodyheight{
 height:5000px;
 }
 .contenttoggle{
 height:60px;
 line-height:60px;
 text-align: center;
 color:@red;
 border:1px solid @red;
 border-radius: 5px;
 .font-dpr(14px);
 margin-bottom:30px;
 }

data(){
 return { 
  contentstatus:false, 
  curheight:0,
  bodyheight:5000
 }
},
mounted(){
 settimeout(()=>{
  this.contenttoggle();
 },500)
 },
methods:{
 contenttoggle(){
 this.curheight=this.$refs.bodyfont.offsetheight;
 if(this.curheight>this.bodyheight){
  this.contentstatus=true;
 }else{
  this.contentstatus=false;
 }
 },
}