动态class 动态style设置

<div :class="{icontant:tr}">
     <div class="iconts2">      
             <div :class="{chcolor:iscolor}"><span>今天：</span>
             <span>2020.5.6</span>
         </div>
         <div  :class="{chcolor:iscolor}"><span>今天1111：</span>
             <span>2020.5.6</span>
         </div>
         <div  :style="{color:istr ? ‘#3d8cff‘:‘#BBBBBB‘}"><span>今天22：</span>
             <span>2020.5.6</span>
         </div>


export default {
    components:{
        slotv
    },
    data(){
        return{
         iscolor:false,
         istr:‘‘ ,
         tr:true
              
        }
    },