var formatNumber = function (n) {
  n = n.toString()
  return n[1] ? n : '0' + n
}
/**
 * 将时间戳(1570550400)格式转为 yyyy-MM-dd格式
 */
var formatDate = function (datetime) {
  var time = datetime * 1
  var date = getDate(time);
  var year = date.getFullYear();
  var month = date.getMonth() + 1;
  var day = date.getDate();
  return year + '年' + month + '月' + day + '日';
}
module.exports = {
  formatDate: formatDate
}