将前导零加到简单的时间戳加法JavaScript函数

function addLeadingZero(timestamp) {
  // 将时间戳转换为Date对象
  var date = new Date(timestamp);

  // 获取年、月、日、小时、分钟、秒
  var year = date.getFullYear();
  var month = date.getMonth() + 1;
  var day = date.getDate();
  var hours = date.getHours();
  var minutes = date.getMinutes();
  var seconds = date.getSeconds();

  // 添加前导零
  month = month < 10 ? '0' + month : month;
  day = day < 10 ? '0' + day : day;
  hours = hours < 10 ? '0' + hours : hours;
  minutes = minutes < 10 ? '0' + minutes : minutes;
  seconds = seconds < 10 ? '0' + seconds : seconds;

  // 返回添加前导零后的时间字符串
  return year + '-' + month + '-' + day + ' ' + hours + ':' + minutes + ':' + seconds;
}