js模仿微信朋友圈计算时间显示几天/几小时/几分钟/几秒之前

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                        <h3 class="userinfo clearfix"><a href="" class="name">大黄蜂</a><span class="fl-right tags"><a href="javascript:;" class="f-reply">回复</a><a href="javascript:;" class="f-support">点赞</a></span></h3>
                        <p class="time">2017-04-25 09:26:02</p>
                        <p class="content">的确很漂亮啊,拍照技术越来越好了</p>
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                        <h3 class="userinfo clearfix"><a href="" class="name">大黄蜂</a><span class="fl-right tags"><a href="javascript:;" class="f-reply">回复</a><a href="javascript:;" class="f-support">点赞</a></span></h3>
                        <p class="time">2017-04-22 09:26:02</p>
                        <p class="content">的确很漂亮啊,拍照技术越来越好了</p>
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                    <a class="c-user-photo" href=""><img src="img/user_photo.png" alt="" /></a>
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                        <h3 class="userinfo clearfix"><a href="" class="name">大黄蜂</a><span class="fl-right tags"><a href="javascript:;" class="f-reply">回复</a><a href="javascript:;" class="f-support">点赞</a></span></h3>
                        <p class="time">2017-04-26 17:50:02</p>
                        <p class="content">的确很漂亮啊,拍照技术越来越好了</p>
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 </li>
<li class="one-comment">
                    <a class="c-user-photo" href=""><img src="img/user_photo.png" alt="" /></a>
                    <div class="comment-info">
                        <h3 class="userinfo clearfix"><a href="" class="name">大黄蜂</a><span class="fl-right tags"><a href="javascript:;" class="f-reply">回复</a><a href="javascript:;" class="f-support">点赞</a></span></h3>
                        <p class="time">2017-04-26 09:26:02</p>
                        <p class="content">的确很漂亮啊,拍照技术越来越好了</p>
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        <script src="http://libs.baidu.com/jquery/2.1.4/jquery.min.js"></script>
      <script type="text/javascript">
            //开发中我们需要计算一条动态的发布时间,一般我们得到的是一条日期字符串,我们需要计算当前时间和动态的发布时间,计算它们的差值来判断发布在什么时候
                //Date.parse() 解析一个日期时间字符串,并返回1970/1/1 午夜距离该日期时间的毫秒数
                //var nDays = Math.abs(parseInt((time2 - time1)/1000/3600/24));
                // 获取当前时间戳(以s为单位)
            function setTime(time,timeSelector){
            var currentTime = Date.parse(new Date());
            var dateTime = time;//后台传递来的时间
            var ts = timeSelector;//选择器
            var d_day = Date.parse(new Date(dateTime));
            var day = Math.abs(parseInt((d_day - currentTime)/1000/3600/24));//计算日期
            var hour = Math.abs(parseInt((d_day - currentTime)/1000/3600));//计算小时
            var minutes = Math.abs(parseInt((d_day - currentTime)/1000/60));//计算分钟
            var seconds = Math.abs(parseInt((d_day - currentTime)/1000));//计算秒
            console.log(day);
            if(day >= 2){
                ts.text(parseInt(day)+"天前").toString();
            }else if(day > 0 && day < 2){
                ts.text("昨天").toString();
            }else if(hour > 0 && hour < 24){
                ts.text(parseInt(hour)+"小时前").toString();
            }else if(minutes > 0 && minutes < 60){
                ts.text(parseInt(minutes)+"分钟前").toString();
            }else if(seconds > 0 && seconds < 60){
                ts.text(parseInt(seconds)+"秒前").toString();
            }
        }
         //列表里面调用方法,传递两个参数 数据库时间和选择器
        $(".one-comment").each(function(){
            var t_time = $(this).find(".time").text();
            var timeSelector = $(this).find(".time");
            setTime(t_time,timeSelector);
        })

        </script>
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