Time函数(通俗易懂,自己根据实际需求修改吧- -)

// time.js
var Time = {// 获取当前时间戳getUnix: function () {var date = new Date();return date.getTime();},// 获取今天0点0分0秒的时间戳getTodayUnix: function () {var date = new Date();date.setHours(0);date.setMinutes(0);date.setSeconds(0);date.setMilliseconds(0);return date.getTime();},// 获取今年1月1日0点0分0秒的时间戳getYearUnix: function () {var date = new Date();date.setMonth(0);date.setDate(1);date.setHours(0);date.setMinutes(0);date.setSeconds(0);date.setMilliseconds(0);return date.getTime();},// 获取标准年月日getLastDate: function(time) {var date = new Date(time);var month = date.getMonth() + 1 < 10 ? '0' + (date.getMonth() + 1)  : date.getMonth() + 1;var day = date.getDate() < 10 ? '0' + date.getDate() : date.getDate();return date.getFullYear() + "-" + month + "-" +day;},// 转换时间getFormatTime: function(timestamp) {var now = this.getUnix();var today = this.getTodayUnix();var year = this.getYearUnix();var timer = (now - timestamp) / 1000;var tip = '  '; if (timer <= 0) {tip = '刚刚';} else if (Math.floor(timer/60) <=) {tip = '刚刚';} else if (timer < 3600) {tip = Math.floor(timer/60) + '分种前';} else if (timer >= 3600 && (timestamp - today >= 0)) {tip = Math.floor(timer/3600) + '小时前';} else if (timer/86400 <= 31) {tip = Math.ceil(timer/86400) + '天前';} else {tip = this.getLastDate(timestamp);}     return tip;}
};

使用:

console.log(Time.getFormatTime((new Date()).getTime()));
console.log(Time.getFormatTime(1488930695721))

参考《Vue.js实战》P128