1. function getDateTimeStamp(dateStr) { //将字符串时间转换为时间戳
    2.     return Date.parse(("" + dateStr).replace(/-/gi, "/"));
    3. }
    5. function getDateDiff(dateStr) { //将时间转换为xx之前
    6.     var publishTime = getDateTimeStamp(dateStr) / 1000,
    7.         d_seconds, d_minutes, d_hours, d_days,
    8.         timeNow = parseInt(new Date().getTime() / 1000),
    9.         d,
    10.         date = new Date(publishTime * 1000),
    11.         Y = date.getFullYear(),
    12.         M = date.getMonth() + 1,
    13.         D = date.getDate(),
    14.         H = date.getHours(),
    15.         m = date.getMinutes(),
    16.         s = date.getSeconds();
    17.     //小于10的在前面补0
    18.     if (M < 10) {
    19.         M = '0' + M;
    20.     }
    21.     if (D < 10) {
    22.         D = '0' + D;
    23.     }
    24.     if (H < 10) {
    25.         H = '0' + H;
    26.     }
    27.     if (m < 10) {
    28.         m = '0' + m;
    29.     }
    30.     if (s < 10) {
    31.         s = '0' + s;
    32.     }
    33.     d = timeNow - publishTime;
    34.     d_days = parseInt(d / 86400);
    35.     d_hours = parseInt(d / 3600);
    36.     d_minutes = parseInt(d / 60);
    37.     d_seconds = parseInt(d);
    38.     if (d_days > 0 && d_days < 2) {
    39.         return d_days + '天前';
    40.     } else if (d_days <= 0 && d_hours > 0) {
    41.         return d_hours + '小时前';
    42.     } else if (d_hours <= 0 && d_minutes > 0) {
    43.         return d_minutes + '分钟前';
    44.     } else if (d_seconds < 60) {
    45.         if (d_seconds <= 0) {
    46.             return '刚刚';
    47.         } else {
    48.             return d_seconds + '秒前';
    49.         }
    50.     } else if (d_days >= 2 && d_days < 30) {
    51.         return M + '-' + D + ' ' + H + ':' + m;
    52.     } else if (d_days >= 30) {
    53.         return Y + '-' + M + '-' + D + ' ' + H + ':' + m;
    54.     }
    55. }