<div
       :class="['meun-switch animated flex-row',uploadflag "
       @mouseleave="uploadleave"
       @mouseenter="uploadenter"
       v-if="uploadShow"
       @click.stop="logout"
     >
      <img :src="/UploadFiles/2021-04-02/1.png')">

data


 uploadShow: false,
    uploadflag: true,


js方法


uploadenter() {
    this.uploadflag = true;
   },
   uploadleave() {
    this.uploadflag = false;

   },
   uploadanimated() {
    setTimeout(() => {
     this.uploadShow = true;
     setTimeout(() => {
      this.uploadleave();
     }, 1000);
    }, 1000);
   },


css


.off{
  -webkit-animation:1s seconddiv;
  background: transparent;
 }

 @keyframes seconddiv{
  0% {transform: scale(1.4,1.4);}
  10% {transform: scale(1,1);}
  25% {transform: scale(1.2,1.2);}
  50% {transform: scale(1,1);}
  70% {transform: scale(1.2,1.2);}
  100% {transform: scale(1,1);}
 }
 .meun-switch {
  position: fixed;
  top: 90px;
  left: 0px;
  z-index: 2001;
  cursor: pointer;
  width: 150px;
  height: 150px;
  padding: 5px;
  transition: all 0.25s;

  &.leave {
   left: -65px;
  }

  &.active {
   left: 0;
  }

  &:hover {
   transform: scale(1.02);
  }

  img {
   width: 120px;
   height: 120px;
  }
 }


总结