vue 绑定class的方式

<div :class="{‘active‘:isActive}"></div>


    data:{
        isActive:true
    }

<div :class="[isActive ? activeclass : ‘‘,errorclass]"></div>

    data:{
        isActive:true,
        activeclass :‘active‘,
        errorclass:‘error‘
    }

:class="classobject"

data(){
    return{
        classobject:{ active: ture, sort: false}
    }
}   

<div id="demo">{{ fullName }}</div>

var vm = new Vue({
      el: ‘#demo‘,
      data: {
        firstName: ‘Foo‘,
        lastName: ‘Bar2‘,
      },
      computed: {
        fullName: function () {
          return this.firstName + ‘ ‘ + this.lastName
        }
      }
    });