JavaScript 时间戳操作：

JavaScript 获取当前时间戳：

//第一种方法var timestamp = Date.parse(new Date());结果：1280977330000//第二种方法var timestamp = (new Date()).valueOf();结果：1280977330748//第三种方法var timestamp=new Date().getTime()；结果：1280977330748//第一种：获取的时间戳是把毫秒改成000显示，//第二种和第三种是获取了当前毫秒的时间戳。

//改写时间戳函数

var toTime = (function(){    //JavaScript函数：    var minute = 1000 * 60;    var hour = minute * 60;    var day = hour * 24;    var halfamonth = day * 15;    var month = day * 30;    function getDateDiff(dateTimeStamp){        var dateTimeStamp = dateTimeStamp*1000;        var now = new Date().getTime();        var diffValue = now - dateTimeStamp;        if (diffValue < 0) {            //若日期不符则弹出窗口告之            //alert("结束日期不能小于开始日期！");        }        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) + "个月前";        } 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) + "个小时前";        } else if (minC >= 1) {            result = parseInt(minC) + "分钟前";        } else            result = "刚刚发表";        return result;    }    return {        getDateDiff : getDateDiff    }})()