text: 
  //计算以多种时间单位表示的时间差
  export const calcDate = (date1, date2) => {
      var date3 = date2 - date1;
  
      var days = Math.floor(date3 / (24 * 3600 * 1000))
  
      var leave1 = date3 % (24 * 3600 * 1000) //计算天数后剩余的毫秒数  
      var hours = Math.floor(leave1 / (3600 * 1000))
  
      var leave2 = leave1 % (3600 * 1000) //计算小时数后剩余的毫秒数  
      var minutes = Math.floor(leave2 / (60 * 1000))
  
      var leave3 = leave2 % (60 * 1000) //计算分钟数后剩余的毫秒数  
      var seconds = Math.round(date3 / 1000)
      return {
          leave1,
          leave2,
          leave3,
          days: days,
          hours: hours,
          minutes: minutes,
          seconds: seconds,
      }
  }