Vue transition实现点赞动画效果的示例

<transition :name=" isLike ? 'zoom' : '' " mode="out-in">
    <!-- 爱心图标 -->
    <icon data="@icon/like.svg" color="#FF0000" v-if="isLike" key="like"></icon>
    <icon data="@icon/unlike.svg" color="#333333" v-else key="unlike"></icon>
</transition>

/** 动画进行时的class **/
.zoom-enter-active, .zoom-leave-active {
    transition: all .15s cubic-bezier(0.42, 0, 0.34, 1.55);
}

/** 设置进场开始的状态和离场结束的状态，都是缩放到0 **/
.zoom-enter, .zoom-leave-to {
    transform: scale(0);
}

/** 设置进场结束的状态和离场开始的状态, 都是缩放到1 **/
.zoom-enter-to, .zoom-leave {
    transform: scale(1);
}

<div class="like-num-wrapper">
    <transition :name="item.is_like ? 'plus' : 'minus'">
        <div
                class="like-num"
                :style="{color: item['is_like'] ? 'red': '#333'}"
                :key="item['like_num']"
        >
            {{item['like_num']}}
        </div>
    </transition>
</div>

  .like-num-wrapper {
    position: relative;
    margin-left: 16px;
    text-align: end;
    font-size: 13px;
    height: 17px;
    overflow-y: hidden;

    .like-num {
      top: 0;
      left: 0;
      position: relative;
      line-height: 17px;
    }
  }

// 点赞数字+1动画
.plus-enter-active, .plus-leave-active {
  transition: all .3s ease-in;
}

.plus-enter, .plus-leave {
  transform: translateY(0);
}

.plus-enter-to, .plus-leave-to {
  transform: translateY(-17px);
}

// 点赞数字-1动画
.minus-enter-active, .minus-leave-active {
  transition: all .3s ease-in;
}

.minus-enter {
  transform: translateY(-34px);
}

.minus-enter-to {
  transform: translateY(-17px);
}

.minus-leave {
  transform: translateY(0);
}

.minus-leave-to {
  transform: translateY(17px);
}

.minus-enter {
  transform: translateY(-34px);
}