vue中使用transition做動畫(在方法中改變元素樣式的時候，外邊需要包裹個定時器)

<template>
  <div class="casehistory">
    <jzrlist :isup="isup" :lastOrder="lastOrder" :djs="djs" @getjzrinfo="getjzrinfo"></jzrlist>
    <div class="classCaseHsitoryBox" :style="{height: 'calc(100vh - ' + chagePatient + ')'}">
      <div class="contentBox">
        <!-- 無病歷信息 -->
        <div style="display:none" class="noMsg">
          <img src="../../assets/img/no_case.png" alt />
          <p>您暫無病歷信息~</p>
        </div>
        <!-- 有就診人且有就診人病歷信息 -->
        <div class="havePatient">
          <div class="time">2019-05-01 星期三</div>
          <!-- 病歷信息(檢查單) -->
          <div class="reportBox reportCensor">
            <h4>病歷信息(檢查單)</h4>
            <ul>
              <li>
                <img
                  src="https://file.syrjia.com/uploadFiles/uploadImgs/20200528/20200528120247.png"
                  alt
                />
              </li>
              <li>
                <img
                  src="https://file.syrjia.com/uploadFiles/uploadImgs/20200528/20200528120247.png"
                  alt
                />
              </li>
              <li>
                <img
                  src="https://file.syrjia.com/uploadFiles/uploadImgs/20200528/20200528120247.png"
                  alt
                />
              </li>
              <li>
                <img
                  src="https://file.syrjia.com/uploadFiles/uploadImgs/20200528/20200528120247.png"
                  alt
                />
              </li>
            </ul>
          </div>
          <!-- 病歷信息(處方單) -->
          <div class="reportBox reportPrescription">
            <h4>病歷信息(處方)</h4>
           
              <ul>
                <img
                  class="msgMor"
                  @click=" type ? type = false : type =true"
                  src="../../assets/img/msgMore.png"
                  alt
                />
                 <transition-group name="slide">
                  <!-- type代表數據的長度如果是3為真，為6(需要改為數據的.length)為假  -->
                <li class="more" v-for="(n,index) in 6" v-if="index < (!type ? 3 : 6)" :key="index">
                  <img
                    src="https://file.syrjia.com/uploadFiles/uploadImgs/20200528/20200528120247.png"
                    alt
                  />
                </li>
                 </transition-group>
              </ul>
          
          </div>
          <div class="remark">
            <h4>備注</h4>
            <p>備注備注備注備注備注備注備注備注備注備注備注備注備注備注備注備注備注備注備注備注備注備注備注備注備注備注備注備注備注備注備注</p>
          </div>
          <div class="time">2019-05-01 星期三</div>
          <div class="doctor">
            <div class="docPro">
              <img
                src="https://file.syrjia.com/uploadFiles/uploadImgs/20200528/20200528120247.png"
                alt
              />
              <h5>張萌醫生</h5>
            </div>
            <h4>診斷：腰間盤突出</h4>
            <p>點此查看為您開具的調理方案>></p>
          </div>
        </div>
        <!-- 無就診人 ——創建就診人-->
        <div style="display:none" class="createPaitent">
          <p>您還沒有創建就診人</p>
          <span>點擊創建</span>
        </div>
        <!-- 無就診人——填寫就診人信息 -->
        <div style="display:none" class="fillInMsg">
          <div class="tip">請添加就診人，和我建立聯系</div>
          <peopleInfo :isDescript="true" ref="peopleInfo" @getData="getData"></peopleInfo>
        </div>

        <!-- 更新病歷信息按鈕  -->
        <footer>
          <div class="updateMsg">更新病歷信息</div>
          <div class="createSubmit">提交</div>
        </footer>
      </div>
    </div>
  </div>
</template>

<script>
import { Toast } from "vant";
export default {
  name: "casehistory",
  data() {
    return {
      chagePatient: "1.9rem",
      isup: false,
      lastOrder: {},
      djs: "",
      jzrinfo: "",
      type: false
    };
  },
  mounted() {},
  methods: {
    getjzrinfo(data) {
      this.jzrinfo = data;
    },
    getData(data) {
      //獲取創建就診人時的信息
      console.log(data);
      this.form = data;
    }
  },
  components: {
    jzrlist: resolve => require(["@/components/doctor/jzrList"], resolve),
    peopleInfo: resolve =>
      require(["@/components/people/people_info"], resolve),
    [Toast.name]: Toast
  }
};
</script>

<style rel='stylesheet/scss' lang='scss' scoped>
.slide-enter-active{
 transition:all .5s linear;
 }
 .slide-leave-active{
  transition:all .5s linear;
 }
 .slide-enter{
   transform: translateY(-10%);
  // opacity: 0;
 }
 .slide-leave-to{
  // opacity: 0;
  transform: translateY(-10%);
 }

img {
  max-width: 100%;
}
.casehistory {
  background: #fff;
}
.classCaseHsitoryBox {
  margin-top: 0.9rem;
  .contentBox {
    .havePatient {
      .time {
        background-color: #f5f5f5;
        height: 0.7rem;
        line-height: 0.7rem;
        padding: 0 0.3rem;
        font-size: 0.26rem;
      }
      .reportBox {
        padding: 0 0.3rem;
        h4 {
          font-size: 0.28rem;
          padding: 0.38rem 0;
        }
        ul {
          overflow: hidden;
          border-bottom: 1px solid #eeeeee;
          padding-bottom: 0.1rem;
          position: relative;
          .msgMor {
            width: 0.41rem;
            position: absolute;
            right: 0.33rem;
            top: 0.65rem;
          }
          li {
            width: 2.1rem;
            height: 2.1rem;
            border: 1px solid #e6e7ec;
            box-shadow: 0px 0px 0.1rem 0px rgba(182, 168, 167, 0.23);
            border-radius: 0.1rem;
            overflow: hidden;
            margin: 0 0.29rem 0.29rem 0;
            float: left;
            &:nth-of-type(3n) {
              margin-right: 0;
            }
            &.more {
              width: 1.7rem;
              height: 1.7rem;
            }
          }
        }
      }
      .remark {
        padding: 0 0.3rem;
        h4 {
          font-size: 0.28rem;
          margin: 0.38rem 0 0.25rem 0;
        }
        p {
          line-height: 0.45rem;
          font-size: 0.3rem;
          margin-bottom: 0.45rem;
        }
      }
      .doctor {
        padding: 0.4rem 0.3rem;
        margin-bottom: 1rem;
        font-size: 0.3rem;
        .docPro {
          display: flex;
          align-items: center;
          img {
            width: 0.64rem;
            height: 0.64rem;
            border-radius: 50%;
          }
          h5 {
            margin-left: 0.26rem;
          }
        }
        h4 {
          margin: 0.28rem 0;
        }
        p {
          color: #8f5f3b;
        }
      }
    }
    // 無病歷信息
    .noMsg {
      text-align: center;
      img {
        margin: 2.88rem auto 0;
        font-size: 0.32rem;
        color: #666666;
        width: 2.64rem;
        overflow: hidden;
        text-align: center;
      }
      p {
        text-align: center;
        font-size: 0.28rem;
        color: #666666;
        margin-top: 0.6rem;
      }
    }
    //無就診人 ——創建
    .createPaitent {
      padding: 0 0.3rem;
      height: 1rem;
      font-size: 0.3rem;
      display: flex;
      justify-content: space-between;
      align-items: center;
      border-top: 1px solid #eeeeee;
      span {
        width: 1.28rem;
        height: 0.5rem;
        border-radius: 0.25rem;
        background-color: #da0428;
        font-size: 0.24rem;
        color: #fff;
        text-align: center;
        line-height: 0.5rem;
      }
    }
    //無就診人——填寫信息
    .fillInMsg {
      .tip {
        height: 0.9rem;
        background-color: #f3f3f3;
        font-size: 0.26rem;
        color: #666;
        padding: 0 0.3rem;
        line-height: 0.9rem;
      }
    }
  }
  footer {
    .createSubmit,
    .updateMsg {
      height: 1rem;
      color: #fff;
      text-align: center;
      line-height: 1rem;
      font-size: 0.32rem;
      position: fixed;
      bottom: 0;
      width: 100%;
    }
    .updateMsg {
      background-color: #da0428;
    }
    .createSubmit {
      background-color: #e4e4e4;
    }
  }
}
</style>