• HTML

 <el-card  class="box-card" shadow="hover" v-for="(moodEssayDate,index) in moodEssayDates" :key="moodEssayDate.pk_moodEssay">
       <div class="card">
         <div class="cardLeft">
           <el-avatar src=" https://img.jbzj.com/file_images/article/201310/20131008165929119.jpg"></el-avatar>
           <swingingPendant class="swingingPendant" v-show="!isLogin"></swingingPendant>
         </div>
         <div class="cardCenter">
           <div class="cardCenterHeader">
             <div class="articleTitle"><label>{{moodEssayDate.essayTitle}}</label></div>
             <span><i class="el-icon-time"></i>{{moodEssayDate.ts}}</span>
           </div>
           <div class="cardCenterBody">
             <div class="cardCenterBodyTop">
               <div :class="[moodEssayDate.isAll?'articleContent':'articleContent2']"  ref="articleContent">{{moodEssayDate.essayContent}}</div>
               <el-button class="checkArticle" type="text" @click="showAllContent(moodEssayDate,index)" v-show="moodEssayDate.showAllContentBtn">展开查看全文</el-button>
               <el-button style="margin: 0;" type="text" @click="NotShowAllContent(moodEssayDate,index)" v-show="moodEssayDate.packUpArticle" icon="el-icon-top">收起</el-button>
             </div>
             <div class="articleBtnS">
               <div  v-show="!isLogin">——无心语录</div>
               <el-button :loading="DelBtnLoading"  v-show="isLogin" @click="DelMoodEssay(moodEssayDate)"  type="primary" icon="el-icon-delete ">删除</el-button>
             </div>
           </div>
         </div>
       </div>
      </el-card>

• JS部分

 //随笔初始化
      getAllMessages(){
        getAllMessages().then(res=>{
          for(let i=0;i<res.data.moodEssayList.length;i++){
            this.$set(res.data.moodEssayList[i], 'index', i)
            this.$set(res.data.moodEssayList[i], 'packUpArticle', false)
            this.$set(res.data.moodEssayList[i], 'showAllContentBtn', false)
            this.$set(res.data.moodEssayList[i], 'isAll', true)
          }
          this.currentTotal = res.data.moodEssayList.length
          this.moodEssayDates = res.data.moodEssayList.slice((this.currentPage-1)*this.pageSize,this.currentPage*this.pageSize)
          setTimeout(() => {
            if(this.$refs.articleContent){
              for(let i = 0;i<this.$refs.articleContent.length;i++){
                if(this.$refs.articleContent[i].offsetHeight>=189){
                  this.$set(this.moodEssayDates[i], 'showAllContentBtn', true)
                }
              }
            }
          }, 200);
        })
      },
      //展开全文
      showAllContent(moodEssayDate,index){
        this.$set(this.moodEssayDates[index], 'isAll', false)
        this.$set(this.moodEssayDates[index], 'showAllContentBtn', false)
        this.$set(this.moodEssayDates[index], 'packUpArticle', true)
      },
      // 收起
      NotShowAllContent(moodEssayDate,index){
        this.$set(this.moodEssayDates[index], 'isAll', true)
        this.$set(this.moodEssayDates[index], 'showAllContentBtn', true)
        this.$set(this.moodEssayDates[index], 'packUpArticle', false)
      },

• 效果图
•