<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;
 }
 },
}