小程序 时间戳转化为几天前，几小时前，几分钟前

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diaplayTime: function(dateTimeStamp){
        var result;
            var minute = 1000 * 60;
            var hour = minute * 60;
            var day = hour * 24;
            var halfamonth = day * 15;
            var month = day * 30;
            var now = getDate();
            console.log('now',now);
            var curTime = getDate(parseInt(dateTimeStamp)*1000); //后端返回的是秒数
            //console.log('curTime',curTime);
            var diffValue = now - curTime;
            //console.log('dateTimeStamp',dateTimeStamp);
            //console.log('diffValue',diffValue);
          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){
                if(monthC<=12)
                      result="" + parseInt(monthC) + "月前";
                else{
                  result="" + parseInt(monthC/12) + "年前";
                }
            }
            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;
  }