<div id='demo'>
    <button @click="show = !show">按钮</button>
    <transition name='move'>
      <div class="v-d" v-show="show">
        <div class='in in_move'></div>
      </div>
    </transition>
  </div>

//css
.v-d{
      width:50px;
      height:50px;
      padding:10px;
      transition: all 0.4s linear
    }
    .v-d .in{
      width:30px;
      height:30px;
      background:#000;
      transition: all 0.4s linear
    }
    .move-enter-active, .move-leave-active{
      transition: all 0.4s linear
    } 
    .move-enter, .move-leave-active{
      opacity: 0;
      transform: translateX(30px);
    } 
    .move-enter, .move-leave-active .in{
      transform: rotate(45deg)
    }   

//js
window.onload = function(){
    new Vue({
     el: '#demo',
     data: {
      show: false
     }
    })
  }

.move-enter, .move-leave-active .in{
  transform: rotate(180deg)
} 

<transition name='move'>
 <div class="v-d">
  <div class='in in_move'></div>
 </div>
</transition>

.move-enter, .move-leave-active .in_move{
  transform: rotate(180deg)
}