因为写全局的公共方法没写容错处理额==,mark一下

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/**
 * 把分钟数转化为day天hour小时minute分钟
 * @param minutes 总分钟数
 * @param onlyToHour 是否只精确到小时（true/false）
 */
transferMinutesToTime(minutes,onlyToHour) {
  const basicMinute = 60;
  const basicHour = 24;
  const basic = basicHour*basicMinute;

  //如果minutes不是非负整数，返回null
  if(!this.checkByRegExp.nonnegativeInt(minutes)){
    return null;
  }

  //如果minutes等于0
  if (minutes == 0) {
    return onlyToHour ? {
      day: 0,
      hour: 0
    } : {
        day: 0,
        hour: 0,
        minute: 0
      }
  }

  //如果minutes为正整数
  let all = Number(minutes);
  let day = Math.floor(all/basic);
  let hour = Math.floor((all%basic)/basicMinute);
  let minute = all%basic%basicMinute;

  let data = {
    day: day?day:0,
    hour: hour?hour:0
  }

  if(!onlyToHour){
    data.minute = minute?minute:0;
  }

  return data;
}