小程序JavaScript倒计时无法每秒自动刷新的问题求助

开发微信小程序时，使用JavaScript编写的倒计时器无法每秒自动刷新，无法呈现出计时器应有的动态效果，尝试修复但未能解决。以下是我的JavaScript代码：

// Event end date list data
let goodsList = [
  {actEndTime: '2023-1-22 10:00:43'},
]
Page({
  data: {
    countDownList: [],
    actEndTimeList: []
  },
  onLoad(){
    let endTimeList = [];
    // Commit the end time parameters of the event into a separate array for easy operation
    goodsList.forEach(o => {endTimeList.push(o.actEndTime)})
    this.setData({ actEndTimeList: endTimeList});
    // Execute countdown function
    this.countDown();
  },
  timeFormat(param){// Formatting function less than 10
    return param <10? '0' + param: param; 
  },
  countDown(){// Countdown function
    // Get the current time and the end time array of the event
    let newTime = new Date().getTime();
    let endTimeList = this.data.actEndTimeList;
    let countDownArr = [];

    // Process the end time and render it to the page
    endTimeList.forEach(o => {
      let endTime = new Date(o).getTime();
      let obj = null;
      // If the event is not over, process the time
      if (endTime-newTime> 0){
        let time = (endTime-newTime)/1000;
        // Get day, hour, minute, second
        let day = parseInt(time/(60 * 60 * 24));
        let hou = parseInt(time% (60 * 60 * 24)/3600);
        let min = parseInt(time% (60 * 60 * 24)% 3600/60);
        let sec = parseInt(time% (60 * 60 * 24)% 3600% 60);
        obj = {
          day: this.timeFormat(day),
          hou: this.timeFormat(hou),
          min: this.timeFormat(min),
          sec: this.timeFormat(sec)
        }
      }else{// The event has ended, all set to '00'
        obj = {
          day: '00',
          hou: '00',
          min: '00',
          sec: '00'
        }
      }
      countDownArr.push(obj);
    })
    // Render, and then execute a countdown function every second
    this.setData({ countDownList: countDownArr})
    setTimeout(this.countDown,1000);
  }
})

补充效果说明 #

重启项目编译后的效果如下：

注：使用JavaScript开发该小程序。

内容的提问来源于stack exchange，提问作者aufa