廢話不多說，先來上圖，看看需求和你們的一樣不，可以用的話，一鍵三連，謝謝

<template>
  <div class="iss-count">
    <div class="count-title">距離直播開始</div>
    <div class="count-time">
      <div class="time-number">{{ day }}</div>
      <span>天</span>
      <div class="time-number">{{ hour }}</div>
      <span>時</span>
      <div class="time-number">{{ minute }}</div>
      <span>分</span>
      <div class="time-number">{{ second }}</div>
      <span>秒</span>
    </div>
    <a-button class="count-btn" type="primary" @click="goTo">
      立即註冊 
 
>>
    </a-button>
  </div>
</template>

<script>
import { reactive, toRefs } from 'vue';

export default {
  props: ['time', 'url'],
  setup(props, context) {
    const state = reactive({
      day: '00',
      hour: '00',
      minute: '00',
      second: '00',
    });

    const openTime 
 
= new Date(props.time).getTime();

    let timer = setInterval(() => {
      const now = new Date().getTime();
      if (now > openTime) {
        clearInterval(timer);
        timer = null;
        context.emit('fnFinish');
      } else {
        const diff = openTime - now;
        state.day 
 
= Math.floor(diff / 1000 / 60 / 60 / 24)
          .toString()
          .padStart(2, '0');
        state.hour = (Math.floor(diff / 1000 / 60 / 60) % 24)
          .toString()
          .padStart(2, '0');
        state.minute = (Math.floor(diff / 1000 / 60) % 60)
          .toString()
          .padStart(2, '0');
        state.second = (Math.floor(diff / 1000) % 60)
          .toString()
          .padStart(2, '0');
      }
    }, 1000);

    return { ...toRefs(state), gotTo: () => window.open(props.url) };
  },
};
</script>

<style lang="less" scoped>
.iss-count {
  padding: 10px;
  text-align: center;
  .count-title {
    font-size: 20px;
  }
  .count-time {
    display: flex;
    justify-content: center;
    align-items: flex-end;
    margin: 50px 0 70px 0;
    .time-number {
      width: 35px;
      height: 40px;
      line-height: 40px;
      font-size: 22px;
      font-weight: bold;
      color: #fff;
      background-color: #595959;
    }
    span {
      margin: 0 8px 0 4px;
    }
  }
  .count-btn {
    padding: 0 40px;
  }
}
</style>