//实现时间转换，这篇文章发布时间为 2016/1/20 19:59:30 文章发表时间戳为：1453291170000于：11月前 function getDateDiff(dateTimeStamp){    var minute = 1000 * 60;    var hour = minute * 60;    var day = hour * 24;    var halfamonth = day * 15;    var month = day * 30;    var now = new Date().getTime();    var diffValue = now - dateTimeStamp;    if(diffValue < 0){
   return;}    var monthC =diffValue/month;    var weekC =diffValue/(7*day);    var dayC =diffValue/day;    var hourC =diffValue/hour;    var minC =diffValue/minute;    if(monthC>=1){        result="" + parseInt(monthC) + "月前";    }    else if(weekC>=1){        result="" + parseInt(weekC) + "周前";    }    else if(dayC>=1){        result=""+ parseInt(dayC) +"天前";    }    else if(hourC>=1){        result=""+ parseInt(hourC) +"小时前";    }    else if(minC>=1){        result=""+ parseInt(minC) +"分钟前";    }else    result="刚刚";    return result;}//转换标准时间为时间戳：function getDateTimeStamp(dateStr){ return Date.parse(dateStr.replace(/-/gi,"/"));}

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另一个选择：

function formatMsgTime (timespan) {  var dateTime = new Date(timespan);  var year = dateTime.getFullYear();  var month = dateTime.getMonth() + 1;  var day = dateTime.getDate();  var hour = dateTime.getHours();  var minute = dateTime.getMinutes();  var second = dateTime.getSeconds();  var now = new Date();  var now_new = Date.parse(now.toDateString());  //typescript转换写法  var milliseconds = 0;  var timeSpanStr;  milliseconds = now_new - timespan;  if (milliseconds <= 1000 * 60 * 1) {    timeSpanStr = '刚刚';  }  else if (1000 * 60 * 1 < milliseconds && milliseconds <= 1000 * 60 * 60) {    timeSpanStr = Math.round((milliseconds / (1000 * 60))) + '分钟前';  }  else if (1000 * 60 * 60 * 1 < milliseconds && milliseconds <= 1000 * 60 * 60 * 24) {    timeSpanStr = Math.round(milliseconds / (1000 * 60 * 60)) + '小时前';  }  else if (1000 * 60 * 60 * 24 < milliseconds && milliseconds <= 1000 * 60 * 60 * 24 * 15) {    timeSpanStr = Math.round(milliseconds / (1000 * 60 * 60 * 24)) + '天前';  }  else if (milliseconds > 1000 * 60 * 60 * 24 * 15 && year == now.getFullYear()) {    timeSpanStr = month + '-' + day + ' ' + hour + ':' + minute;  } else {    timeSpanStr = year + '-' + month + '-' + day + ' ' + hour + ':' + minute;  }  return timeSpanStr;};

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